Persistent Mouse Lag Issue Under High System Load – Request to Disable Mouse Processing

Feature Requests
1

I’ve been using BetterTouchTool for almost 10 years and am very grateful to the developer for the long-term support of the app. However, I have a recurring issue: during high system load, my mouse stops responding to clicks or responds with a delay. This issue is instantly resolved when I close the app. It was especially frustrating when I worked on my old MacBook, where even the keyboard buttons became sticky under high load—something that isn’t noticeable on the new MacBook, yet the mouse lag persists.

I don’t use any mouse-related rules or settings at all—I only need keyboard management. Considering this, it’s very strange that the app affects the mouse even when no mouse functions are set. I reported this issue back in 2019, but nothing has changed since then. I kindly request an option to completely disable mouse processing and tracking to ensure there is no chance of encountering this annoying issue.

2

unfortunately all apps that do anything with events will have this issue if your system is under super heavy load - however this usually means something else is wrong as the load required to cause issues is very high.

BTT doesn't process mouse related stuff if no trackpad/mouse triggers are configured, however even processing other events can cause such behavior.

Personally I haven't experienced issues with this in a long time, but it can not be prevented completely under super heavy load.

3

Thanks for the answer, and I understand that. The reason I wrote this is because none of the other apps which process keyboard events I tested are not leading to that issue. I don't have a really super high load, it just happens during the compilation of apps, for example.