The performance of OBS is not really what I am getting at. I just used it as an example showing the effect. The point is having MSFS as the focus seems to increase the resource usage compared to when it isn’t. Something that wasn’t an apparent issue before the hotfix.
As well as OBS this is also illistrated by the fact that on a recent flight over Madagascar I had MSFS ss the focus. When i looked at the ground passing below it had frequent stutters. When i clicked on any other application then things suddenly became much smoother