Laptop system lag when moving mouse
4.5
The entire computer stutters or freezes whenever the mouse is moved.
Symptoms
- FPS drops
- Audio crackling
- System hang
Possible Causes
- High polling rate
- GPU driver issue
- USB conflict
Step-by-Step Fix
1
Lower Polling Rate
Reduce the mouse polling rate to 500Hz or 250Hz.
2
Update GPU Drivers
The cursor is a hardware overlay; GPU issues can cause lag.
3
Try Different Port
Ensure the USB controller isn't being overwhelmed.
When to See a Technician
A 1000Hz polling rate can actually cause CPU spikes on older or weaker laptops.
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