Hi @UP1952HU you can see the GPU budget in the Asobo performnce monitor and it’s fine. All the graphs are in the green for the most part so this isn’t taxing the GPU or CPU 99% of the time.
The microstutters are caused by small delays in the rendering pipeline held up by the CPU process to compute the EFIS graphical display information (Garmin display). I had the same issue with some third party maps I added to the sim.
The FlyByWire team were able to get much better smoother performance for there A320 mod by changing the way EFIS displays were updating by only updating part of the display at a time which resulted in a much smoother flying experience. Hopefully that’s something Asobo adopt with the default planes going forward.