If your having a weird mouse issue in game where its not really controllable or responsive and always tries to look at the ground then this is what you have to do en order to fix it.
Before we begin your going to have to always launch technic from either the .exe or shortcut
- Go to the launcher .exe or a shortcut you use.
- Right click and hit "Properties"
- Go to the tab called "Compatibility"
- Make sure "Disable display scalling on high DPI settings" is checked
- Hit "Apply" Then "Okay"
- Run the launcher through that .exe or shortcut