+- TDS Sim Software Forums (https://www.tdssim.com/forum)
+-- Forum: TDS Sim Software (https://www.tdssim.com/forum/forum-1.html)
+--- Forum: TDS GTNXi Flight Simulator (https://www.tdssim.com/forum/forum-2.html)
+--- Thread: Poor performance of GTN panel (/thread-1813.html)
Poor performance of GTN panel - dcolson - 06-27-2026
I recently got a new PC, and after reinstalling MSFS and the TDS GTNXi, the performance of the GTN display is very bad. It's slow to respond and had a very poor framerate. The framerate of the sim is fine, I easily get 50ish FPS (without framegen).
I have read and done the steps in the performance tips thread, so gtn_simulator has a windows defender exemption, but it did not make any difference. I tried popping out the window, but the issue is significantly worse if I do that, the GTN unit is even less responsive in that case.
My specs are
Graphics card: Nvidia 3090
CPU: AMD 9950x3d
Ram: 32GB ddr5
Here is a video I took of the issue, experienced with the A2A commanche:
I tried a couple other aircraft such as the Black Square baron and bonanza, and they were exactly the same.
I am on version 3.10.3.0 of the aviation trainer, 20.42.2.0 of the GTNXi PC Trainer and 1.3.1.4 of the executable
RE: Poor performance of GTN panel - adminOwner2 - 06-27-2026
Hello,
Please show us a screenshot of the Windows Defender exclusions set.
In addition, which version of MSFS are you running?
RE: Poor performance of GTN panel - dcolson - 06-28-2026
I'm on Flight Simulator 2024, I have attached the exclusions below
I noticed taking this screenshot that flight simulator 2024 itself was not an exclusion, I wasn't sure if this would make a difference, but I added it anyway after my last message, and it seems to be much better now! So I guess that must have been it?
RE: Poor performance of GTN panel - adminOwner2 - 06-29-2026
Hello,
Thank you for the screenshot, unfortunately the process exclusions are wrong.
You need to exclude Processes, not full paths. This is described, with screenshots, in the TDS GTNXi PDF manual.
Such as:
gtn_simulator.exe
FlightSimulator2024.exe
FlightSimulator.exe (for MSFS 2020)
In your screenshot, you are excluding the full path of gtn_simualtor.exe and not as a process.