How to Improve Pointer Accuracy in Long Work Sessions?

I’ve been working long hours on my PC lately, and I noticed that my pointer accuracy feels inconsistent at times—especially when doing detailed tasks or navigating complex software.

Is there any recommended way to keep the cursor movement stable and precise during extended work sessions?
If anyone has tips on settings, workspace setup, or tools that help improve accuracy, please share.

For example, I recently started checking my sensitivity using a Mouse DPI Analyzer, and it actually made my movements more consistent.
I’m curious what other people here are using or recommending