At the begining: I know that Blender 2.8 is still in Beta, but I think we need to talk about things like that since Blender 2.8 is few months before RC.
I testing Blender 2.8 for a while (since November 2018), but I also already moved to that version so I have some experience with that 
Almost everything works great, but there are some serious issues with performance but most important, with how UV editing works in Blender 2.8
I’ve posted issue here so you can check it (there are video and Blend file so I recommend you to watch it):
https://developer.blender.org/T63620
Let me know if there are more people who have problem like this. I tested that with my friends on few other PC and problem is really there.