Very long lag and delay when selecting things. and other annoying things

try if disabling “Window > Prefrerences > OpenGL > Fast Feedback” helps.

the license dialogs are browser-based (Chromium) and need to ‘talk’ with the Trimble license server. If limited user rights or an over-motivated security solution is blocking this, the issue you have described may arise.

Re-install SU by launching the setup routine by “rclick > Run as Admin” and ensure, that internet access (single user license: ports #80/8080/443 open) is granted to the used user account.

btw, OpenGL support (and speed) of integrated intel HD graphics sub-systems is *beep * and not made for the use with 3D modelers, go for a dedicated GeForce GTX for your next device.