I also have bad stuttering when using BATC AI. I'm not using any FG or Lossless Scaling. It's pretty immersion breaking and disappointing when everything else about BATC is so good.

I don't get stuttering with BATC on default settings and FSLTL models.

I have reduced the texture size of FSLTL models from 4K to 2K.

Keeping all sliders at default "5" doesn't impact my performance at all.

Either does FSHUD, btw.

With both I use FSLTL AI models - never tried AIG.

My FPS are fixed at 30 thorugh Nvidia Control Panel.

5 minutes ago, flyingscampi said:

I don't get stuttering with BATC on default settings and FSLTL models.

I have reduced the texture size of FSLTL models from 4K to 2K.

Strange. I am also using FSLTL models downscaled to 2k. On the ground there is very little stuttering, but any aircraft in the air and using runways stutter terribly. 

Probably not helpful but I too don't see any performance impact with all BATC traffic sliders set to 5 and FSLTL models only. This is in FS2024.

20 minutes ago, Jeeper said:

Strange. I am also using FSLTL models downscaled to 2k. On the ground there is very little stuttering, but any aircraft in the air and using runways stutter terribly. 

Try to adjust BATC FPS to your in sim FPS and see if improves.

You can also try other batc core engine to see if it's better.

Edited January 22, 20251 yr by Bond

3 hours ago, Leftos said:

You mean the injectors that rely entirely on MSFS' internal traffic AI, which perhaps might appear smoother, but is full of a laundry list of show-stopping bugs?

None of them are perfect and you’re right there’s bugs but they don’t hurt basic functionality like having smoother traffic, to me personally I couldn’t care if the traffic is running at 1fpd { frames per day } as long as my sim doesn’t stutter. 

1 hour ago, Jeeper said:

Strange. I am also using FSLTL models downscaled to 2k. On the ground there is very little stuttering, but any aircraft in the air and using runways stutter terribly. 

I checked this morning when I saw this thread. I watched planes on the drone camera taxiing, landing, and taking off at FlyTampa's KBOS with BATC settings at default. 

In this scenario with FSL's A321 powered up, I get just above 30 fps with the main thread solid red and GPU about ~50% utilisation. I don't use FG, Ultra graphics.

1 hour ago, Jeeper said:

Strange. I am also using FSLTL models downscaled to 2k. On the ground there is very little stuttering, but any aircraft in the air and using runways stutter terribly. 

What Kind of stuttering are you talking about or noticing. Can you elaborate?

Is BATC and Displayed Aircraft letting your whole MSFS Sim Stuttering, so panning "your" views and also viewing at the outside world, does all that stutter?

Or does only the displayd AI Model stutter? Like the AI plane isn´t presentated fluidly while your sim stays fluid?

What I see is the latter. My displayed AI Models are presentated stuttering like, so THEY do not move fluidly while my own sim and view stays fluidly.

I think this is a important difference. Because the AI Models are running on their own software-engine (BATC) and just injected into the sim.

1 hour ago, mpo910 said:

What Kind of stuttering are you talking about or noticing. Can you elaborate?

Is BATC and Displayed Aircraft letting your whole MSFS Sim Stuttering, so panning "your" views and also viewing at the outside world, does all that stutter?

Or does only the displayd AI Model stutter? Like the AI plane isn´t presentated fluidly while your sim stays fluid?

What I see is the latter. My displayed AI Models are presentated stuttering like, so THEY do not move fluidly while my own sim and view stays fluidly.

I think this is a important difference. Because the AI Models are running on their own software-engine (BATC) and just injected into the sim.

Yes the latter for me as well. My sim is running smoothly at about 40fps, but the BATC AI are moving like a slideshow. It looks like they're warping 10 feet every other second. It looks surreal. Adjusting the BATC FPS setting makes no difference at all.

5 hours ago, El Diablito said:

A new development since the latest update. Didn't occur whatsoever before the update. Not sure why they would tamper with "performance" and cause this if it was running incredibly well two updates ago! Seems like a red herring if you ask me and there is something else going on that should be easy to fix.

Good to know you are the second person who has mentioned the latest update played a roll in this.  Thanks for chiming in there's hope!

 

1 hour ago, Jeeper said:

It looks like they're warping 10 feet every other second.

 

2 hours ago, mpo910 said:

What I see is the latter. My displayed AI Models are presentated stuttering like, so THEY do not move fluidly while my own sim and view stays fluidly.

You guys need to go into BATC settings and select a higher FPS from the dropdown menu. I’ve got mine set to 90, and traffic moves very smoothly. I had it set to 30, but it looked like you described. Haven’t tried higher values, and I’m not sure if it hurts overall sim performance. 

9 minutes ago, V1ROTA7E said:

 

You guys need to go into BATC settings and select a higher FPS from the dropdown menu. I’ve got mine set to 90, and traffic moves very smoothly. I had it set to 30, but it looked like you described. Haven’t tried higher values, and I’m not sure if it hurts overall sim performance. 

You need to set it to the upper limit of your average (native) FPS, otherwise you're literally wasting ressources on BATC because the injected traffic can't be any "smoother" than your sim. In other words: sim-FPS >= BATC FPS

1 hour ago, V1ROTA7E said:

I’m not sure if it hurts overall sim performance. 

It absolutely eats into frame rate ramping up BATC's frame rate.  I tried this tact to help fix the stuttering AI traffic (never happened in FSLTL) and realized because of the substantial hit on sim frame rate ended up returning to 60fps.  IMPORTANT:  several people (on their Discord) have stated this issue began with the most recent update to BATC which suggests a change made brought this about for some if not most users.  So time to put AI traffic on ignore (i.e., stop focusing on it!) until BATC devs acknowledge and address this.

1 hour ago, Fiorentoni said:

You need to set it to the upper limit of your average (native) FPS, otherwise you're literally wasting ressources on BATC because the injected traffic can't be any "smoother" than your sim. In other words: sim-FPS >= BATC FPS

My sim is totally smooth as it has been, but AI traffic from BATC is not. I'm using DLSS FG and the native rate is set at 30, so 60 FPS-FG.  Someone on their discord said I should move the BATC rate to 30 to match that, and that made the AI traffic worse.  From what I gather BATC's traffic runs outside MSFS so what exactly are you suggesting when you say, "can't be any smoother than the sim"?   Others have said a recent update to BATC brought AI traffic stuttering.  Is that not your experience?

I mean to try DX11 for BATC to see if somehow that makes a diff so will next time up.
 

Edited January 22, 20251 yr by Noel