Logitech MX Master 3S Bluetooth Issue / Lagging / Delay

I am referring to this closed thread: Logitech MX Master 3 / keys lagging. - Apple Community


Basically I am trying to understand the exact problem. After having googled and researched a lot, reddit as well, I found that when I disconnect my Sony WH-1000XM4 the mouse works supersmooth. But when it's connected it doesn't.


And at this point I don't think it is interferences as mentioned in some results I found. I feel like the bluetooth capacity is overloaded with this:


  • 1 Keychron Keyboard Bluetooth
  • 1 Logitech MX Master 3S
  • 1 Sony WH-1000XM4


It kinda would make sense to me that the Headphones would take the most bluetooth "bandwidth" but I am asking here if that makes sense. What Limit is there on bluetooth bandwidth and does it make sense that even though those are just 3 devices they can clog each other - or that the Headphones clog the mouses data?

MacBook Pro

Posted on Jan 10, 2023 7:57 AM

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Posted on Jul 31, 2023 8:45 AM

I have a Mac Pro 2019 with Mac OS Ventura 13.2.1 (22D68). I have had issues with adding a 3rd bluetooth connected device. I have the keyboard and magic pad connected via bluetooth. When I add any other bluetooth device to my Mac the mouse cursor lags bad. Typing also seems to lag a little, but that isn't as noticeable as the mouse cursor jumpy movements. I have connected the keyboard with a lighting cable and gone into the bluetooth settings to forget the keyboard connection (wired mode now). Now, when I connect my headset or airpod pros to my Mac Pro, I don't get anymore lag. $6,000 Mac Pro bluetooth limit is 2 bluetooth devices. I haven't attempted a 3rd party bluetooth adapter yet, but I guess I will if I ever need another BT device.

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43 replies

Feb 21, 2024 11:40 AM in response to dasbuilder

I have been battling with this for years, and I was almost at a point where I was about to go back to Windows. Anybody who says they resolved the issue is, I think, not doing anything advanced on their computer like multiple screens and using applications that require high precision mouse.


But.....


After trying almost 10 different mouses, I have a shot to Keychron m3 connecting via USB-C, finally I have a mouse works properly. I also purchased the Keychron M6, haven't had a chance to try that one yet.


I think there is something within macos blocking the bluetooth mouse Polling rate depending on something which isn't public information.

Dec 15, 2023 11:51 AM in response to node_dave

This is extremely frustrating. I've been trying to solve this for almost 2 years. And I really don't think it has anything to do with the Bluetooth. I think macOS in the back blocks the mouse functionality periodically it's not consistent I could have a whole day sometimes no issues and then all the sudden it starts getting laggy. What is so incredible is that there is really no other option than this mouse if you are doing anything advance on macbook pro.



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Logitech MX Master 3S Bluetooth Issue / Lagging / Delay

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