When I look at Netflix, I often do something on my second screen. Sometimes I play something or do something else. In any case, then I have always every 2/3 seconds a judder or a lag which makes playing impossible. I always have that when I watch Netflix by the way. Does anyone have any idea how to fix it?
What kind of graphics card do you have?
I have a NVIDIA GeForce GTX 1060 6GB
Could be a lot. Possibly. Graphics driver not up-to-date, RAM full, processor too busy, graphics card too busy, …
Could also be because the window is not active.
Update the drivers