Excel Performance Problems

How to Fix Severe Lag and Freezing in Microsoft Excel 365

Amos GikundaAmos Gikunda Nov 3, 2026 869 views

Question details

The user needs to resolve severe performance issues, such as lagging and freezing, while using Microsoft Excel 365 on a capable computer.

How to Fix Severe Lag and Freezing in Microsoft Excel 365
Product
Microsoft Excel 365
Device & OS
Windows
Scenario
Opening, editing, or navigating through workbooks in the Microsoft Excel application.
Observed behavior
Excel becomes extremely slow, unresponsive, or completely freezes, even when running on a computer with powerful hardware components.
Before you start

Ensure that your Windows operating system, Microsoft 365 suite, and graphics card drivers are updated to their latest versions before proceeding with the troubleshooting steps below.

Solution 1Recommended

Disable Hardware Graphics Acceleration

Turning off hardware graphics acceleration can resolve rendering conflicts that cause Excel to freeze or lag on certain system configurations.

Hardware graphics acceleration is designed to improve performance by offloading rendering tasks to your GPU. However, incompatible or outdated graphics drivers can cause severe conflicts, resulting in Excel becoming unresponsive. Disabling this feature forces Excel to rely on software rendering, which often stabilizes the application.

1
Open Excel Options

Launch Microsoft Excel. Click on the 'File' menu in the top-left corner, and then select 'Options' at the bottom of the sidebar.

2
Navigate to Advanced Settings

In the Excel Options dialog box, click on the 'Advanced' tab located in the left pane.

3
Disable Graphics Acceleration

Scroll down to find the 'Display' section. Check the box next to 'Disable hardware graphics acceleration'.

4
Apply and Restart

Click 'OK' to save your changes, then completely close and restart Excel to see if the performance has improved.

Disable Hardware Graphics Acceleration
Alternative Access: If you cannot access Excel Options because the application freezes immediately, you can perform these exact steps in another Office application, such as Word or PowerPoint. The graphics acceleration setting applies globally to the entire Office suite.
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Frequently Asked Questions

Why is Excel lagging even though I have a high-end PC?

Excel can experience severe lag on powerful computers due to software-level conflicts, such as incompatible third-party COM add-ins, outdated graphics drivers interfering with hardware acceleration, or corrupted Office installation files.

Will disabling hardware graphics acceleration affect my other Office apps?

Yes, disabling hardware graphics acceleration in Excel is a suite-wide setting. It will apply the change globally across other Microsoft Office applications like Word and PowerPoint, which often improves overall stability across the suite.

How do I know if a specific workbook is causing the lag?

You can test this by opening a completely blank workbook. If Excel runs smoothly without any lag or freezing, the performance issue is likely isolated to the specific file you were previously working on, which might contain excessive formatting, complex macros, or hidden objects.

What should I do if Excel still freezes in Safe Mode?

If Excel continues to freeze even in Safe Mode, the issue is not being caused by add-ins. You should proceed to update your graphics card drivers, run an Online Repair for your Microsoft 365 installation, or temporarily disable your antivirus software to check for background conflicts.