Umberto,
I wanted to preface this by saying that I enjoy FSDT products but I've run into an issue with KSDF. I'v ensured that the product is up-to-date prior to doing any type of research into this issue. The issue seems to occur when flying into KSDF from another airport. I'm unable to reproduce it if I depart from KSDF and land at KSDF which makes me believe something is struggling to load in? The stutters tend to begin around 3,000' and progressively get worse as I descend on final approach. These stutters also tend to disappear by the end of the runway roll out and occurs on all runways.
I've been able to reproduce this issue with no 3rd party programs running (ActiveSky, SmartCARS, etc.) and using default aircraft. My computer is a high end system with the following specs:
Intel i9 9900k OC 5GHz
ASUS Maximus Hero XI Motherboard
TridentZ 32GB DDR4 RAM
ASUS Strix 2080ti OC 11GB
Admittedly, this issue hasn't occurred with any other scenery product so I'm unable to try to reproduce these results with another product. I also has FSDT KCLT and I don't have the same issue. Some settings I've adjusted to try to resolve the issue are as followed:
-Disabled ground traffic
-Disabled 3D cars on parking lots
-Cap Simcoonect Updates (with and without box checked)
Here is the video I've recorded to show the issue.
https://youtu.be/6rdzG9ffqg0Thanks for the help with trying to resolve this!