Limited by main thread

I have the same problems, especially with the big planes as the Boeing 747-8 i. Even before the start, my FPS are in the basement, the display “Limited by Mainthread” and Mainthread display is almost permanently in the red area. Like most, I have more than enough resources at my disposal. Even the single core load is not over 75%. Only the memory fills up to 70-80% (of 32 GB).

My HW specs.: Asus ROG Strixx x299 E-Gaming / Intel i 7800X (6c/12t Socket 2066) / RAM 32 GB GSkill F4-3200C14-8GTZR / Game installed on Samsung SSD / Graphics: RTX 2080 Ti /i-net Con. 1000 Mbit´s (up to 118 MB/s)
-on Ground:


After Start