Thank you for taking time to fill in the template and reading the instructions. There can be so many root causes to the graphical issues that my advice is 1st to create a topic in the User Support Hub User Support Hub > Install, Performance & Graphics to look for assistance, advices from the community.
By providing information on your system, hardware, MSFS graphical configuration, other users can help to determine where the issue could be, make some recommendation to change your settings so that you can test again and maybe resolve your issue.
The stutters issue at airport has been fixed in the last version 1.2.8.0.
There is also an ongoing issue with VRAM as commented by @TenPatrol : FPS performance - VRAM bug?
As recommended above, try to lower your graphic settings to reduce the demand on VRAM.
I also have a RTX2060 (super) coupled with a Ryzen 5 3600, 16GB RAM.
I let MSFS setup automatically the graphics settings during the install (many settings are low/medium, I know I cannot set all on high/ultra) and don’t have noticeable stutters.