Now I already have an I7-11700KF and an RTX 3060TI and 31.9 GB RAM in it. xD
I only have 4 Actors in my Scene. xD
Then I’ll have to see if I can get a second PC or someone who can test with me regularly. Or I can test in a lower resolution or lower the FPS to 60, because then the problem won’t occur.
In a tutorial on Udemy, an interpolation was created for a car because it is jerky.
I thought I could solve the problem with that. 
Do you think this would also solve the problem if I stick with it and try to solve it with interpolation?