This is an issue that I never use to have, even opening the base templates I’m having issues. It’s compiling the shaders very slow, for the third person template it has 3000 shaders compiling when I open it every time. This means I have to wait ages until I can do anything. I never use to have this issue. I’m using 4.18.1. I don’t think it would be hardware related if this never use to happen?
It should only compile the first time you open a project on a new version of the engine. I’d try uninstalling and reinstalling 4.18.