🐞 Moving windows between screens becomes laggy after enabling the macOS native window manager,

[Caffeine19]

Bug Description

After updating to the latest version 1.3.0, moving window between screens becomes laggy.
The version 1.2.0 is fine. And if turn of the "Use macOS window manager when available" would also be fine.

Steps To Reproduce

1. Updating to the latest Loop version 1.3.0
2. Turn "Use macOS window manager when available" on
3. Using Keybinds from Loop to move window between screens.

Expected Behavior

It should as smooth as older version.

Actual Behavior

Moving windows between screens becomes pretty laggy.

Screenshots

Recording.at.2025-08-17.17.25.58.mp4

macOS Version

15.6 (24G84)

Loop Version

Version 1.3.0 (1528)

Additional Context

No response

Final Checks

• My issue is written in English
• My issue title is descriptive
• This is a single bug (multiple bugs should be reported individually)
• I can help with fixing or developing this issue (tick if you can help).

[Caffeine19]

This is the keybinds I use.

[SenpaiHunters]

I don't have a second monitor to test this with, and there were a lot of changes from versions 1.2.0 to 1.3.0, so I can't say for sure what it could be. Can you turn off the macOS native window manager and test if it's still choppy? (Also, ignore the tags; I misclicked last night...)

[Caffeine19]

I don't have a second monitor to test this with, and there were a lot of changes from versions 1.2.0 to 1.3.0, so I can't say for sure what it could be. Can you turn off the macOS native window manager and test if it's still choppy? (Also, ignore the tags; I misclicked last night...)

Yes, in the video above, I also tried turn off the "Use macOS window manager when available" option in Loop, and it works fine.
And these it the settings in macOS settings:

[SenpaiHunters]

I also had issues with the macOS WM. I'm not entirely sure why this is problematic or what caused it. I'll ask Kai to investigate and find out the reason, as it's one of the features. If it's a core issue with macOS, we may not be able to do much, but it might not be, so we'll see.

[Caffeine19]

I also had issues with the macOS WM. I'm not entirely sure why this is problematic or what caused it. I'll ask Kai to investigate and find out the reason, as it's one of the features. If it's a core issue with macOS, we may not be able to do much, but it might not be, so we'll see.

Thanks, I really appreciate that Loop supports using the macOS native window manager. There are some things only the native manager can provide, for example the resize divider between windows. And in my tests, only windows tiled by the macOS native manager stay organized after plugging or unplugging my external monitors, while windows tiled by Raycast or Rectangle end up with the wrong size and position. Really appreciate it.