Whole studio lagging when in fullscreen

[dtrest5674]

Whenever Roblox studio is opened, the window has a delay. Sometimes you can set Roblox to window mode with another program and the delay (lag) is gone. In full screen mode, the window always lags.
The Roblox player and every other programm works perfectly.
I have deleted every single Roblox related file on my PC manuelly as well but nothing works.
CPU: AMD Ryzen 9 7900X3D 12-Core
Ram: 32GB
GPU: NVIDIA GeForce RTX 4070 Super
Beta Fetures: Dragger- QoL-improvement
Live_Animations-Creator
Multi-line command bar
Reimport
User-provided standard instances

[MaxCaulfield_001]

Hello There! I hope you’re doing well.
Thank you for taking the time to submit this issue and for reading our message.

To help us move forward, we’d appreciate your support with a few questions:

• Is this issue still occurring on your device?

• If so, could you please include a microprofiler dump, and your system information?

Don’t worry — we’ve got you covered!
You can find step-by-step instructions on how to generate and send the microprofiler [How to post a Bug Report - Bug Reports - Developer Forum | Roblox]. Following these steps will help us better understand the issue and work on a solution more efficiently.
Thank you again for your cooperation!

[dtrest5674]

microprofile-20260106-193433.zip (999.3 KB)
Yes and
CPU: AMD Ryzen 9 7900X3D 12-Core
Ram: 32GB
GPU: NVIDIA GeForce RTX 4070 Super
Hope that helps

[isaac3523 (CEOofIsaac)]

I’m having a similar issue where my studio when in full screen / fully on my monitor it lags super heavily but when I’m windowed ? its fast & fine? its so weird I don’t know what my issue is but I’ll send my specs here.

CPU: AMD Ryzen 9 9950X3D
GPU NVIDIA GeForce RTX 5080
Ram: 32GB

[isaac3523 (CEOofIsaac)]

Okay, I found the problem

With my issue it was to do with G-SYNC

I had Full screen and windowed and that affected my studio heavily for some reason, but when going back to full screen it fixed..

Hope this helps! But its weird

[gg_halos (gooseblimp)]

Try disabling fullscreen optimizations: Right-click RobloxStudioBeta.exe → Properties → Compatibility → Check “Disable fullscreen optimizations”. That, or you might need to rollback your drivers (Most likely issue here) Could also be live animations creator I think I heard of an issue with that before.

[dtrest5674]

Thank you so much! That was my problem as well It seems fine now.