Stutters that disappear after restart

Hello, about 2 weeks ago, I started to have a stutter problem with MSFS. When I start the sim for the first time since turning on computer, it is really laggy and the sound is choppy. This all goes away, once I restart the sim. Sometimes I have to restart the sim a couple of times for it to stop acting out. Anytime this happens, I am RdrThread and MainThread limited. MainThread limited isn’t something special, but the RdrThread is weird, since I am normally getting around 6 ms, but when it stutters it spikes up. The weird thing is that it only happens on the outside view, not inside and only when moving the camera and during take-off and landing. When taxiing or not moving camera, all is normal.

All drivers are up to date, didn’t change anything in the PC or anything else. I have tried everything, reinstalling sim, even reinstalled windows, but nothing helps.

Any help would be appreciated.

link to videos: Stutters - Google Drive