How to determine what keeps causing my mouse cursor to stick or slow down a lot? Every once in a while, my mouse cursor will stop for a second, or move extremely slow, every half minute or so. I recently upgraded to High Sierra, but also noticed this occurring when running Sierra.

The only way to resolve it is to reboot my machine, which is a problem due to the type of work that I do where I need to keep my undo history.

I've tried restarting many of the apps that I use, but the problem persists. I've also looked at the CPU and Memory tabs in the Activity Monitor, but nothing jumps out as being the culprit.

Does anyone have any suggestions as to how to figure out what's causing this so I don't have to reboot to fix it?

All yesterday, my machine worked without any problems. This morning when I started working, I noticed the problem.

Here are my specs:


MacBook Pro 15-inch 2016
2.9 GHz Intel Core i7
16 GB Memory
Radeon Pro 460 4 GB
3 TB External Thunderbolt 2 drive
Dual LG 27" UltraFine 5K IPS LED Montiors (thunderbolt 3)
Logitech MX Master (connected using USB receiver -- have used same mouse for years)
After removing the USB receiver, I connected my Logitech MX Master to my MacBook Pro via Bluetooth and am no longer experiencing issues with the mouse cursor sticking or slowing down.