Does anyone else have problems where the Realtime Protection feature of Windows Defender causes a big performance drop in the Unity editor? I'm using 2017.1, and seemingly randomly the antivirus scan will spin up and eat 25% of my CPU, leaving Unity sluggish. This applies to both in play mode and just messing around in the editor. In the profiler, the pause occurs during Gfx.WaitForPresent. My only recourse is to disable realtime protection. I tried excluding the Unity folder, project folder, Unity process, from the antivirus scan, but it didn't help. Has anyone else experienced this?