Vulkan API streams too much, Direct3D11 is glitchy in studio edit mode

There has been some weird issues regarding the Vulkan API and Direct3D11

  1. Vulkan tends to stream way too much, way too fast, and almost everything that’s a humanoid.
  2. Direct3D11 performs worse in studio edit mode compared to Vulkan. (In playtesting D3D11 performs normal) ?
  3. Constant stuttering with Direct3D11’s rendering in studio edit mode.

Running Vulkan -
in first person mode:


when more humanoids appear: (the arms are streamed to a low quality, happened since early 2024)

Running Direct3D11 -
in first person mode:
same results as first vulkan img
when more humanoids appear: (doesn’t stream and stays consistent)

The faults of Direct3D11 - (check fps)
in studio edit mode:


in playtesting:

Using vulkan fixes the problem (but has those weird streaming issue)

More descriptive post: Humanoid becomes streamed when same humanoids are rendered? - #6 by YTFTAshPlays

This might be an issue with older Nvidia RTX & GTX gpu models such as the early 20 series, cannot confirm but some users who have 1660tis, 2060 supers, etc did experience similar issues.

Sys Info:
OS: Windows 11
CPU: Ryzen 7 7700x
RAM: 16gb
GPU: RTX 2080 ti

Expected behavior

Vulkan shouldn’t be streaming excessively and Direct3D11 shouldn’t be performing too poor in studio mode.

Do you have a laptop? If so I know exactly what the culprit is for Direct3D11.

Make sure under the Windows Graphics settings on Windows 11 that you have Roblox Studio set as a High Performance program.

For some reason, on some laptop architectures, Windows thinks that Studio is a Power Saving program which will refer to the integrated graphics for help and NOT your dedicated.

I have no clue how only Studio has this issue and I’ve never experienced it elsewhere, but it was driving me mad enough to get a monitor just to hook it up via HDMI and avoid having to manually reset that toggle EVERY TIME STUDIO UPDATES.

Just the life of a laptop user I guess.


On a side note, if you don’t want to have to do it manually each time, Win Global GPU was what tied me over until I got my monitor. Just don’t expect to be able to configure any apps to use a specific GPU anymore because this program will just overwrite it, and the Windows settings just crash if you attempt to open the Graphics settings. It does work wonders however.

Roblox should really address this issue though because I’d imagine the application has a hand in reporting what performance levels it requires, and if Windows thinks it’s a low power program, I do think it’s a mistake on their end.

Sorry I don’t use a laptop, and no there are no problems with a low power program.

I think the culprit is definitely something to do with Nvidia GPU’s tied with Roblox though (for me), not sure how much that is related and I don’t really know how much they update or check the rendering for “semi-old” cards.

1 Like

i also experience this from time to time using an rtx 3060 / rtx 3050 laptop

Yeah well if it’s also being an issue for the 30 series, then it might just be a bug or something to do with Nvidia gpu’s on roblox.

Curious since I don’t have an amd gpu I’m not sure if the problem occurs similarly when using Vulkan.

Thanks for the report! I filed a ticket in our internal database.