10 Quick Ways to Speed Up a Slow Mac

Addressing Performance Issues on Your Mac
It's a common misconception that Macs are immune to performance slowdowns. Like any computer, a Mac can experience reduced speed over time. If you notice your Mac operating slower than expected, the following advice can assist in pinpointing and resolving the issue.
Similar to Windows-based PCs, numerous factors can contribute to a Mac's sluggish performance.
Avoid Unnecessary "Optimization" Software
Exercise caution when considering applications marketed as Mac "optimizers" or speed boosters. While some tools, such as the Mac iteration of CCleaner, can eliminate temporary files and reclaim disk space, they generally don't deliver substantial improvements in overall system performance.
These "cleaning" programs often provide minimal benefit and may even introduce instability. Focusing on core system maintenance is a more effective approach.
Common Causes of Slow Performance
- Full Startup Disk: A nearly full hard drive can significantly impact speed.
- Insufficient RAM: Limited memory can cause the system to rely heavily on slower storage.
- Too Many Startup Items: Numerous programs launching at boot can consume resources.
- Outdated Software: Older versions of macOS and applications may contain performance bugs.
- Malware: Although less common than on Windows, malware can still affect Mac performance.
Identifying the root cause is crucial for effective troubleshooting. Regularly monitoring your Mac's resource usage can help prevent performance degradation.
Prioritizing genuine system maintenance and avoiding dubious optimization software will contribute to a smoother and more responsive Mac experience.
Identifying Processes Consuming Excessive Resources
Related: Methods for Terminating Unresponsive Applications on macOS
The Activity Monitor, functionally similar to Task Manager in Windows, is a valuable tool for observing active processes and pinpointing those that are disproportionately utilizing system resources. It can be initiated by pressing Command+Space to invoke Spotlight search, entering "Activity Monitor," and then pressing Enter.
To arrange processes by CPU utilization, click the "% CPU" column header. This will display the applications and processes currently demanding the most processing power. Occasionally, a single application may be identified as consuming an exceptionally high percentage of CPU, potentially requiring termination. Select the process and click the X button in the toolbar to force-quit it. Exercise caution to avoid terminating essential system processes. Attempting a normal closure of the application should always be the first approach.
Should this method prove ineffective, navigate to the "View" menu and choose "All Processes" to reveal a comprehensive list of all running processes on your Mac. Furthermore, examining the "Memory" tab can highlight processes with substantial memory footprints, which may contribute to performance degradation. Investigate the "Disk" section as well; high disk activity by a process can also lead to slowdowns.

Addressing Running Applications
The Mac OS X operating system often maintains applications in a running state, even after their windows are closed, as indicated by their presence in the dock. Simply clicking the red close button doesn't always terminate the application entirely; it may continue to operate in the background.
While this behavior is generally not problematic, a noticeable slowdown in your Mac's performance could suggest the need to terminate some of these persistently running programs.
How to Properly Quit Applications
Identify applications on your dock that display a small dot beneath their icon. This signifies that they are still actively running.
To close these applications, either right-click or Ctrl-click on their respective icons within the dock. A contextual menu will appear; from this menu, select the "Quit" option.
Optimizing Mac Startup for Enhanced Performance
A sluggish login experience on your Mac can often be attributed to an excessive number of programs launching automatically.
Managing these startup applications is straightforward. Begin by accessing the System Preferences panel. This is done by clicking the Apple menu in the top-left corner of your screen and choosing "System Preferences."
Controlling Login Items
Within System Preferences, locate and click the "Users & Groups" icon. Select your active user account from the list presented.
Next, click on the "Login Items" tab. This section displays all applications configured to launch upon login.
To disable an application from automatically starting, simply uncheck the corresponding box next to its name. This prevents it from initiating during the startup process.
Adding Programs to Startup
Conversely, if you wish to have a program launch automatically, you can easily add it to the list.
Either drag and drop the application's icon directly into the "Login Items" list, or click the "+" button located at the bottom of the window. A file selection dialog will appear, allowing you to choose the desired application.
By carefully managing your login items, you can significantly improve your Mac's startup time and overall performance. Optimizing these settings is a key step in maintaining a responsive system.
Addressing Launch Agent Clutter
CleanMyMac X incorporates a function to manage Launch Agents. These are small, background processes that initiate other applications automatically, often without the user’s direct awareness.
A proliferation of these agents can lead to noticeable system slowdowns and unexplained activity.
How to Clean Launch Agents
To address this, simply download and execute CleanMyMac X.
Navigate to the "Extensions" section, then select "Launch Agents" to identify and remove unnecessary items.
This process helps streamline your Mac’s startup and background operations.
Unwanted Launch Agents can contribute to a sluggish system performance.
Regularly cleaning these agents can improve overall responsiveness.

Optimizing Performance by Decreasing Transparency and Animations
Transparency and animations can place a considerable load on the graphics processing unit (GPU), particularly in older Mac models.
Diminishing these visual effects is a straightforward method to potentially enhance system speed and responsiveness.
Begin by accessing the System Preferences application. Subsequently, select the "Accessibility" icon.
Within the Accessibility settings, locate and enable the "Reduce transparency" feature to lessen the impact of translucent elements.
For users of OS X Yosemite, this adjustment can yield noticeable performance improvements on older hardware.
Further optimization can be achieved by modifying the Dock preferences.
Instead of the "Genie effect" for window minimizing animations, choose the "Scale effect."
This alternative animation style may contribute to a slight increase in speed during window minimization.
Optimizing Web Browser Performance
A sluggish web browser can often be the source of performance issues on your computer. The standard recommendations are applicable to macOS as well, with particular attention needed regarding Google Chrome, which frequently exhibits diminished performance on Mac OS X.
Reducing the quantity of browser extensions installed and limiting the number of simultaneously open tabs can significantly conserve both memory and CPU usage.
Consider utilizing the Safari browser, which is integrated with Mac OS X. It generally demonstrates superior performance compared to Chrome, particularly in terms of battery efficiency.
If your workflow permits, and you aren't reliant on specific Chrome features or extensions, a transition to Safari could prove beneficial.
It's worth noting that browser choice can have a substantial impact on overall system responsiveness.

Deactivating FileVault Disk Encryption
Further reading: Guidance on Encrypting Your Mac’s System Drive, External Drives, and Specific Files
By default, FileVault disk encryption is activated on macOS Yosemite installations. This feature is designed to protect the data stored on your Mac in the event of theft, safeguarding it from unauthorized access.
Furthermore, it prevents malicious actors from altering your password and gaining access to your system without your consent.
However, on certain Mac models, enabling FileVault can result in significantly slower boot times or login processes. Should you experience this performance issue, you can disable FileVault by navigating to System Preferences.
Within System Preferences, select the "Security & Privacy" icon, then choose the "FileVault" section, and finally, switch the disk encryption feature off.
Unless your Mac exhibits substantial delays during startup or login, we advise maintaining FileVault’s enabled status for continued data security.

Enhance Finder Performance
By default, the Finder application on macOS initiates with an "All My Files" perspective when a new window is launched. Should your Mac contain a substantial quantity of files, this default view can experience delays in loading, consequently impacting Finder's responsiveness with each new window opening.
This issue can be circumvented by accessing the "Finder" menu and choosing "Preferences." Within the Preferences panel, designate a preferred folder under the "New Finder Windows Show" setting. For instance, you can configure Finder to consistently open new windows directly to your "Downloads" folder.
By implementing this change, Finder will no longer attempt to load the potentially resource-intensive "All My Files" view, resulting in faster window initialization.
Selecting a specific folder as the default view streamlines the Finder's startup process.

Reclaiming Storage Capacity
Related: Methods for Increasing Available Disk Space on a Mac.
Similar to all computing devices, optimizing disk space utilization can enhance performance, particularly when storage is limited. To assess your current storage status, navigate to the Apple menu, then select "About This Mac," and review the information presented under the "Storage" section.
Should the available space be insufficient, it becomes necessary to liberate storage on your Mac’s internal drive.

Resolving Mac Issues with an SMC Reset
Related information can be found regarding the resolution of the "Wi-Fi: No Hardware Installed" error within Mac OS X.
A surprisingly effective solution for a diverse range of Mac system issues exists, though it's often overlooked, particularly by those familiar with Windows operating systems. Resetting the System Management Controller – commonly referred to as the SMC – can address problems ranging from diminished performance to difficulties during startup and even Wi-Fi connectivity failures.
Importantly, this process does not result in any data loss; it functions as a more fundamental system restart for your Mac.
Detailed guidance for resetting your Mac’s SMC is provided below.
Understanding the SMC's Role
The SMC is a dedicated controller on your Mac’s logic board. It manages low-level functions, including thermal management, battery charging, and keyboard backlighting.
Occasionally, the SMC’s settings can become corrupted or require a refresh, leading to the aforementioned issues. A reset restores these settings to their default configurations.
How to Reset Your Mac's SMC
The procedure for resetting the SMC varies depending on your Mac model. Here's a breakdown:
- MacBooks with Non-Removable Batteries: Shut down your Mac. Press and hold Control + Option + Shift on the left side of the keyboard, along with the power button, for seven seconds. Release all keys and then power on your Mac.
- MacBooks with Removable Batteries: Shut down your Mac. Disconnect the power adapter and remove the battery. Press and hold the power button for five seconds. Reconnect the battery and power adapter, then power on your Mac.
- iMac, Mac Mini, Mac Pro: Shut down your Mac. Unplug the power cord. Wait 15 seconds. Plug the power cord back in and wait five seconds. Power on your Mac.
Following these steps will initiate an SMC reset, potentially resolving a variety of system-related problems.
Reinstalling Mac OS X
Related: A Guide to Completely Wiping and Reinstalling macOS
In situations where troubleshooting proves ineffective, a complete operating system reinstall can often resolve persistent issues. This approach is universally beneficial across devices, extending even to problems encountered on iPhones or iPads.
Provided that essential data is backed up, reinstalling Mac OS X on your Mac is a viable solution. The process is notably streamlined compared to a Windows reinstall, eliminating the need for separate installation media downloads.
Instead, you can initiate the installation by booting into a dedicated recovery mode. Your Mac will then automatically download all necessary files directly from Apple. However, creating backups of your important files prior to commencing is strongly recommended!

For Macs equipped with traditional mechanical hard drives, consider an upgrade to a solid-state drive. This is a reliable method for enhancing the performance of any computer system.
Image Credit: Thomas Leuthard on Flickr, bfishadow on Flickr





