Your RTX 5070 Ti is similar in performance to an RTX 4080 Super. Even the 4080 struggles with true 4K performance in MSFS 2024 without relying on DLSS or Frame Gen. So if the 4080 can’t handle it properly, your 5070 Ti definitely isn’t powerful enough for smooth 4K in this sim, no matter what Nvidia claims.
You’re running an i5 12600, which I had a few years ago myself. After that, I used an i7 12700K, then a i9 13900K, followed by a Ryzen 7 7800X3D and now I’m on a Ryzen 7 9800X3D so I think you get the point.
i5 12600 it’s not a bad CPU but for MSFS 2024 or MSFS 2020 especially with heavy stuff like the iniBuilds A350 at OMDB - it’s starting to show its limits.
And seriously, don’t waste time chasing YouTube “performance miracles” or magic tweaks. There is no Holy Grail of optimization in MSFS. Anyone claiming otherwise is just selling illusions.
Also, MSFS 2024 SU2 isn’t really suitable for testing GPU performance right now because the performance is just unstable. If you want a proper baseline, test your GPU in MSFS 2020 (non-beta), where performance is more consistent.
Bottom line: play at 1440p, not 4K. Wait for 2024 SU3. And if you want real gains, consider upgrading to something like the Ryzen 7 9800X3D. That’s where the difference will be.
edit
I’m generally against disabling Resizable BAR or G-Sync because they usually help performance and smoothness. However, it seems like there’s something off with some Nvidia 50XX series cards or maybe with Nvidia drivers or even monitor/TV firmware.
Take a look at the forum thread below started by @SBSx9 for more details:
https://forums.flightsimulator.com/t/performance-boost-for-strong-hardware-g-sync-off-multi-frame-generation-msfs-2025/727473
P.S. You forgot to include screenshots of your current MSFS 2024 settings.