Screen saver freezing after update.
I'm using Majave 10.14.6 and after a recent update my mac keeps freezing when the screen saver comes on. It also freezes if I select screen saver in system preferences. Everything just freezes up, if left for a minute or so it unfreezes, but everything runs extremely slow and lags unless I restart. Before the update everything was fine. I did try upgrading to Catalina but that caused more issues with my fan running whilst sleeping, so I reinstalled Mojave.
Any ideas what to do?
MacBook Pro