Some things to play with in the settings, as the presets are kind of wack:
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The Data / Online settings can cause stutters due to connectivity, even though the app is meant to fall back gracefully. To narrow it down try switching OFF at Options / General / Data (tab) / Online Functionality. Usually it’s the ‘Live Real-World Air Traffic’ causing issues, but switch them on one by one to see.
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The Aviation Traffic has a LOD bug that eats VRAM. Again, to narrow it down, try flying a Flight Set-up with no Multiplayer / AI traffic. The ‘Flight Conditions’ page should look like this:
- The vehicle buzzing around default values are too high for 16GB of RAM. Try turning down Airport Life and Land and Sea Traffic down to 20 (from 50).
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MSFS due to the way its Rolling Cache works is really susceptible to Virus Checkers causing frame jitters. Try putting an exception in for MSFS file locations or turn it off to narrow things down.
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The Rolling Cache is a bit buggy, and can cause frame drops. Try turning it off if you don’t have an internet cap. It’s here at the bottom (your data usage will grow, depending on where you fly), but you can view a tracking total number on it:
- For a 1070 try the Anti-Aliasing set to FXAA.
If after all the above things don’t help, knock the Options / General / Graphics / Render Scaling down to 80% - most people are hard pushed to see the difference and it helps a lot on VRAM.
(I’ve got some more of these that are just for general hardware, so will update here - Performance Tips so it hopefully gets found more easily in the future)