VM slowed down

Hey, for whatever reasons my VM is suddenly after a month of successful deployment slowed down.

Symptoms:

- Mouse clicks delayed

- Whole VM unresponsive for some time, then responsive again

- Everything feels sluggish, slow not like it was before

I tried one of the KB articles:

https://kb.vmware.com/s/article/1027805

But not difference - I also re-installed VM Tools, also no improvement.

Any idea what is going on?

Thanks