Increase track pad speed above max

Trying to increase speed of trackpad not working. First tried increasing it using terminal ( increase trackpad speed above max - Google Suche ). It says the settings have saved but when I restart still nothing. So thought i'll try better touch tool, still does not work.

Using macbook pro 2021 mac os13.1. I've tried on my macbook air m1 mac os 12.3 and still the same issue.

Any help would be greatly appreciated thank you.