Excessive lag when moving the mouse in studio

Moving my mouse causes studio to drop significant frames on all places since at least a couple weeks ago.

Old post

https://i.gyazo.com/b7256770ff88eaa54b9ad23d6159a6d2.mp4
This is me moving my mouse at a constant rate back and forth

If you have a lot of water in studio, and you move the camera with the mouse, you will drop significant frames. This only happens if there’s water and you’re moving the camera. This obviously makes it practically impossible to do anything that involves the viewport.

water bug.rbxl (11.7 KB)

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This bug report is not actionable. It needs computer specs, OS and a microprofiler dump.

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DxDiag: https://drive.google.com/open?id=17GIC1A7eI35crK11soUSBnFsVY9TtHpA
MicroProfiler dump: https://drive.google.com/open?id=1uNiGkopVc6oyE4rPtLAWjXz1g1_FlNSm

Interesting. I don’t know if this is related to water - for some reason some frames are very very long with no activity, almost as if something is delaying next render frame in Studio. cc @Silent137 in case this has been observed before

It only happens when the file has water in it, but it used to happen if you go into play solo, though I haven’t personally seen that behavior for a few months.

I tried it. I didn’t have as drastic of lag as you had, but I definitely still had felt it.

If I’m <9 graphics, I don’t experience the lag. It only seems to occur for me on level 9 graphics and above.

This happens to me on all graphics levels on OS X on even an empty baseplate.

With those specs I’m very concerned as to how you up and lag like that. Def seems like an issue worth looking into in my opinion.

@Silent137 This is now happening with every place file. It might have been doing this at the time of posting this thread but I didn’t notice because I was only working in the water place.

Ok, apparently this has nothing to do with the camera or water. It’s just mouse movement. @Silent137

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Also happens to me on Mac. Makes Roblox feel like it runs worse than it does.

This is insane. That framerate is what I’m actually seeing in studio.

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I seem to be having this issue, but it’s not consistent. Sometimes it’s happening, sometimes it isn’t. When it’s happening, I can face the camera to the sky and move my mouse around to drop my FPS as low as 30 FPS (from 60 FPS).

Here is a microprofiler dump from when I caught it happening last time. Shortly after this it stopped happening again.

I’ve been experiencing this for a while now. I think it started around the time (or when) the new studio start screen came. I always assumed it was just because I’m using a toaster.

Same problem here, looks exact same

https://gyazo.com/7fa8bc520402524339769fc4d66bddf1

–My specs and windows 10 pro

It’s fixed!

For me

For the benefit of anyone finding this thread while searching for a fix, I experienced the exact same problem today after a mouse driver and software package update. In my case, SteelSeries engine and Rival 300 mouse. The issue was that the new software set the mouse input polling rate to 1000Hz, which totally overwhelms Studio in Play Solo whenever moving the mouse. Symptoms are identical to Sharksie’s video. Setting polling rate to 125Hz completely fixed the issue.

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I am also am getting this issue, except it happens right away on start and everything is very laggy. it wasn’t like this 3 days ago.

i am running a i7-8700k, GTX 1080, and 16 GB RAM I don’t see why I wouldn’t be able to run Roblox Studio.

Disregard that! I’ve found the solution to my issue. I had to turn GSync off. With GSync on I was getting 15 FPS in studio for some reason.

1 Like