Revert/roll-back to the previous version of Studio 2019?

I upgraded Studio 2019 to SR 2 yesterday but it has been behaving very strangely since then - crashes, freezes and everything seems to take a very long time... Is there any way I can revert/roll-back to the previous version of 2019? There is a lot of work coming in at the moment so I don't have time to fiddle with it - I just want a tool that I can work with : )