UE4Editor become very very slow when opening projects

This seems to be a common issue, for my desktop computer and my laptop both suffer from this.
A solution I found that can ease this pain temporarily is that every time this issue happens, open the Oculus Client and close it or just start the Oculus VR Runtime Service in Windows service, and the editor can boot normally, how strange! I don’t know why but it looks like UE4 editor has a headache and Oculus Client is a bottle of strong painkillers hhh.

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