Mouse cursor speed suddenly reduced

Hello silverlightbill, welcome to the Microsoft community, I'll be happy to help you today;

It may be that during the update some settings have been reset to default;

There is a setting that, if enabled, will slow down the mouse cursor;

Click on the Windows search bar and type: mouse

In the mouse search result, click Mouse Settings;

Click Additional Mouse Options;

Click the Pointer Options tab and turn off the "Enhance Mouse Precision" option;

Click Apply;

Check if the cursor speed has become faster;

Hope this helps, see you soon!

This is getting annoying. Even after the steps mentioned above, the cursor speed got super-slow. (To get across the screen was taking 7 to 9 movements of the full width of the mouse pad.) But it returned to normal in some apps, then got slow again when I left those apps. I tried replacing the batteries -- no difference. Then I looked at the mouse cursor speed, which I had left set to 16, and found that Windows (or some virus) had been reduced it to 8. I increased it to 20. Back to normal cursor speed. I left the computer for a couple of hours, and returned to find that the cursor speed was now super-fast. Much too fast. I set the cursor speed back to 12, and now it seems normal again.

Help!!

Yes, that helped. But when I turned off the Enhance Pointer Precision, and set the cursor speed back to 10, the cursor was still significantly slower than before the update. When I gradually increased it up to 16, that approximates the cursor speed that I used to have before the update, with the cursor speed set to 10.

I appreciate you telling me how to get additional flexibility, but the slowdown is still a mystery.

Btw, I've been doing Windows development since 1995, and I posted my first question to this forum in the Silverlight time frame (perhaps 2006 or 2007), hence my screen name.

Luiz, I have a Logitech M310 (cordless optical) mouse. At your suggestion, I tried the Logitech web site, looking for a driver update. Finding a driver update on their web site is impossible, and their customer support is negligible. (They offer 24/7 chat, but presumably due to the pandemic, it isn't manned.) I downloaded and installed their SetPoint app, which didn't appear to help. Then I downloaded and installed their Options app, which appeared to fix the problem, but I don't know why. Both of these apps allow the user to adjust mouse settings, but I didn't use them for that. I can only conclude that the Options download included a driver update.

Anyway, my mouse cursor is back to normal speed, and I credit you for getting me on the right track, even if I don't know how or why.

To add to the mystery, after my second post in this thread (i.e., while I was dealing with Logitech), the problem returned with a vengeance. Really slow cursor speed, even with the Enhance Pointer Precision turned off. But temporarily while I was navigating the Logitech web site, the mouse cursor returned to normal (or near-normal) speed. When I left their web site, back to slow cursor speed. Sounds like magic.

Dear silverlightbill,it really is a mystery;

What is the mouse model and manufacturer?

Check the manufacturer's website for driver updates for your mouse model;

Hope this helps, see you soon!