How to increase mouse tracking speed beyond the maximum for MacOS Mojave 10.14?
The app SteerMouse has multiple adjustments for tracking speed and acceleration, which go beyond the limits imposed by the macOS controls. I've used it for years to resolve the same complaint. SteerMouse 5.3.8 works happily on Mojave.
Edit July 7, 2021: SteerMouse (now v. 5.5.7) continues to work correctly under macOS 11.4 Big Sur.
NOTE: Apple Magic Mouse and Magic Trackpad are not supported.