Mouse wheel doesn't zoom in or out for a few seconds after entering or leaving a group in a model

Hi everyone. I have a problem with the wheel zoom. It doesn’t zoom in or out, for a few seconds after entering or leaving a group in a model. When I start the program it works perfect, but in a couple of minutes it starts to block. I tried with new mouse, but it’s the same.

Are you following the guidelines for performance ?

https://help.sketchup.com/en/sketchup/improving-performance

(I’m thinking perhaps SketchUp is “catching up” during the lag.)

What about AV software? Could it be slowing things down?

Thank you for your quick response. I follow the guidelines. I’ve been doing everything the same as in the previous 10 years, as much as I use the Sketchup. That is why it is frustrating. It happens to me with very small files.
I don’t know about AV, i guess it’s not a problem.