It’s just Intellisense being slow with Unreal but do not despair as there are a couple of things you can do to fix this:
- In Visual Studio Right-click in soloution explorer on your project > Properties > NMake > set additional options to ‘/Yu’ for precompiled header files. ( This solved my issues )
- Put your project on a SSD.
- Use http://www.wholetomato.com/ Visual Assist. (there is a free trial but you’ll have to pay eventually. It does speed up the intellisense though)
Hope this helps