49 minutes ago, Bunchy said:

I have a very similar system. TLOD 200 is too high on the ground, I found TLOD 100 helps with panning stutters, but you will see it's not enough while in the air.... Enter stage right, auto FPS. Great free app.

Out of all settings, TLOD is the one that makes the biggest difference.

A good test is in the Fenix at EGLL, either the default Gaya or inibuilds version. If you can get things smooth there, then I think you'd be pretty good at any other major airport.

Good suggestion will try that combination, I also think the TLOD could be the reason, I'm 200, lowered to 100, no noticiable changes in frames, only some deformed airport carts around hahaha. Will get AutoFPS and see what happens. Many thanks.

27 minutes ago, cianpars said:

Insofaras a settings guide for SU4 is concerned, you just need to stick to the old ones.  It is possible to tune out all of the performance gains by pushing some of the settings up a notch like terrain LOD, shadows, object LOD and texturre resolution, however, I have refrained from doing that so as I can continue to benefit from the slightly better smoothness I have been getting.

Since I set my max framerate to 60 in the Nvidia software and 30 in the sim, using FRG at 2X, I normally get 60 fps or close to most of the time so will not see any improvements in my overall frame rates.

Chat GT can give you a starting point for your settings or using something like the Nvidia app, though most of us have been around the block enough times to know how far we can push things and which we can and cannot push.

Try to be aware of which settings are heavier on your CPU though as I'm guessing that most of us are still CPU bound ratherthan GPU bound.

In fact, in my case, modesty aside, I tuned very well my setup, therefore the excellent result I get in MSFS and XP12, and almost MSFS2024, but it is this only point already described in my posts that is really irritating me, in the end I can live with that, only that point that it is not the whole MSFS2024 experience so I won' trash it all just for a tiny part of the experience. It is just that I like to optimize, test, and find the culprit and will find it, unless we have to wait for more SU's in the future.

5 hours ago, alexcolka said:

I'm also looking for that guide too, yes SU4 is better and also I'm considering to move to MSFS2024 completely and keep MSFS just in case because I have the ssd space.

However despite of having solid frames with a rtx4090, 64gb ram, i9 11900k and rolling cache at 64gb, I'm irritated by the fact that even having on ultra the setting "Off Screen Terrain Pre-Caching" I get terrible frames on custom complex airports when transitioning from, for example one virtual cockpit view from the overhead panel to the side view of the cockpit, like the scenery it is not properly cached, but from there, any cockpit panning is smooth. The issue is only when I stay for several seconds on any particular cockpit view and change to other custom cockpit view, this never happened on MSFS.

Any ideas will be appreciated, thanks!

Everyone has different hardware systems.

That is why there is no guide and not much accurate advice as to what the best settings are for your system.

The fastest and best solution is to experiment until you find what is acceptable for your system.

7 hours ago, G-YMML1 said:

Hello,

Since I'm moving finally to FS2024 in anticipation of CP/PMDG combo releases, I would appreciate your suggestions for my smooth transitioning. I will also be torturing Chat GPT for a next few weeks 🙂

TIA!

Ah yeah your system is quite powerful....  You might run into a situation on ULTRA presets with VRAM because of the 5070Ti but still that's a nice card.  Just maybe notch down a few things to high, like characters and fauna etc

Your system definitely needs a RTX 5090 hehe.

At 6:40 into the video we this chart of settings effects (which I keep posted on my wall):

 

 

4 T's: TLOD, Trees, Terrain Shadows, and Traffic (which is not on that page of settings).

Edited December 15, 2025Dec 15 by Fielder

18 hours ago, alexcolka said:

I'm also looking for that guide too, yes SU4 is better and also I'm considering to move to MSFS2024 completely and keep MSFS just in case because I have the ssd space.

However despite of having solid frames with a rtx4090, 64gb ram, i9 11900k and rolling cache at 64gb, I'm irritated by the fact that even having on ultra the setting "Off Screen Terrain Pre-Caching" I get terrible frames on custom complex airports when transitioning from, for example one virtual cockpit view from the overhead panel to the side view of the cockpit, like the scenery it is not properly cached, but from there, any cockpit panning is smooth. The issue is only when I stay for several seconds on any particular cockpit view and change to other custom cockpit view, this never happened on MSFS.

Any ideas will be appreciated, thanks!

I keep my cache at 48gb, the reason being above 48gb can corrupt the cache data. I have an Nvidia 3060 12gb vr, I also run AutoFPS and the FG Mod. With BATC set to 10 on airport traffic, I'm getting between 48/59 FPS at MKVY's Gatwick Airport with 2k res:-

 

Edited December 16, 2025Dec 16 by SierraHotel BSc

14 hours ago, Fielder said:

4 T's: TLOD, Trees, Terrain Shadows, and Traffic (which is not on that page of settings).

5 Ts if you include texture resolution which really hits VRAM if you are a bit low on it.

On 12/15/2025 at 7:23 AM, G-YMML1 said:

Thanks. I will be using a LOT of AI traffic via PSXT, so I guess I'm staying in 1440/2k resolution until I get my hands on 32GB video card. 

FWIW for you, I have an RTX4090, all ultra, lots of AI traffic using FSLTL's models in BATC, and have RenderScaling set at 130 with my 3440x1440 display for a net upscale to 4471 x 18771, and it shows.  It's rare to see VRAM exceed 14GB and that includes running a 2nd display at 1920x1200.

17 hours ago, Fielder said:

At 6:40 into the video we this chart of settings effects (which I keep posted on my wall):

I saw that chart is useless because it was done on hardware that was woefully different than my own.  For example in heavily treed areas--makes almost zero different to CPU loading nor wide open rate, things like that.  Look at the top of the chart at test bed specs.  Worthless.

6 hours ago, SierraHotel BSc said:

I keep my cache at 48gb, the reason being above 48gb can corrupt the cache data. I have an Nvidia 3060 12gb vr, I also run AutoFPS and the FG Mod. With BATC set to 10 on airport traffic, I'm getting between 48/59 FPS at MKVY's Gatwick Airport with 2k res:-

 

Rolling cache at 48gb because above that may be corrupt data? that's new to me but interesting. Will test that, many thanks. My frames when sitting on complex airport looking front are great, the horrid drop in frames is when I just change some cockpit views looking to other directions, then, the frames increase again. Reducing TLOD from 200 to 100 may help but scenery textures you know, are more blurry in 4k.

Edited December 16, 2025Dec 16 by alexcolka

1 hour ago, alexcolka said:

Rolling cache at 48gb because above that may be corrupt data? that's new to me but interesting. Will test that, many thanks. My frames when sitting on complex airport looking front are great, the horrid drop in frames is when I just change some cockpit views looking to other directions, then, the frames increase again. Reducing TLOD from 200 to 100 may help but scenery textures you know, are more blurry in 4k.

My experience with MSFS 2020 and 2024 suggests "less is more" 🙃😉

28 minutes ago, SierraHotel BSc said:

My experience with MSFS 2020 and 2024 suggests "less is more" 🙃😉

I've experimented with rolling caches of different sizes between zero and 64 gb. I've found 48 gb to be the sweet spot for me as well, though everyones syestem may demand a different setting (mine is in my signature).

It is of course a good idea to purge the rolling cache from time to time (along with shaders and dx cache) and on a modern system, it only takes a few seconds to rebuild.

Edited December 16, 2025Dec 16 by cianpars

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