Logitech Mouse (MX Master3 & MX Vertical) too high speed since v6.536

Bugs or Unexpected Behavior
1

Describe the bug
Since the latest BetterTouchTool update, my mouse pointer speed has become excessively fast. I have tested this with both my MX Vertical and MX Master 3, and the behavior is identical.

The main issue is that even if I manually adjust the "Tracking Speed" in macOS System Settings to a comfortable level, BTT seems to override it. As soon as BTT restarts or is active, the mouse speed instantly jumps back to being way too high.

What I've checked:

  • I looked at the "Normal Mouse" section in BTT settings, but I do not see a "Set Tracking Speed" slider there anymore (see attached screenshot).

  • I have tried toggling "Use high level mouse event recognition", but the speed remains inconsistent with my system preferences.

Has anyone else experienced this "speed jump" with Logitech mice after the update? Is there a hidden plist value or a specific setting I should check to prevent BTT from forcing its own mouse speed at startup?

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):

  • Mouse Logitech MX Master 3
  • Mouse Logitech MX Vertical

Screen used:

  • LG Ultrafine 4K 32UL750-W
  • Integrated MBA M2 display

Device information:

  • Type of Mac: MBA M2
  • macOS version: Tahoe 26.5.1 (25F80)
  • BetterTouchTool version: 6.536

Additional information (e.g. crash logs, related issues, etc.):

--

Thanks in advance.

2

could you post screenshots of your logitech mouse configuration in BTT? Is the speed or dpi set to a high value there?

3

Hello,

I don't change the DPI between the previous BTT version and the new one. It's set to 2000.

I try to lower it to 800: no effect.
Same for 8000...

image
image1920×1056 220 KB

image
image1920×1044 223 KB

image
image1920×1196 213 KB

image
image1920×1275 187 KB

4

then best downgrade for now, this alpha is pretty experimental- I‘ll do some more testing later today!

5

I didn't mention that I use the Setapp version...
I don't know how to revert back to previous version :sweat_smile:

edit : Setapp said that the previous version was: 6.304
Ouch... there were many versions between this old one and the one published today on Setapp...

6

ah unfortunately I also don’t know, possibly disabling the alpha/beta channel in the setapp settings?

7

I didn't remember that I enable the beta feature in Setapp...
This is disabled now.

8

I think I found the issue:

There was a bug in older versions where the acceleration value was ignored on some mice. Now that it is not being ignored anymore they might feel much faster. Reduce this value to make it feel slower again:

image
image2398×1902 338 KB

9

Ho! I can give it a try :wink:
I'll get back to to you tomorow :wink:

10

Hello,
I confirm that this is the solution:

I set it to 2, and my mouse isn't too quick :smiley:

Thanks :slight_smile:

11

Hello @Andreas_Hegenberg

Today, it just happened the same problem...
But I didn't touch any settings...

But, I used another Logitech mouse yesterday : a MX Master3 on which I set the same values for acceleration and cursor speed, and DPI as my MX Vertical.

But it took some try to have this working. I had to shutdown the MX Master3 severals times.
ANd this morning, I get back to my desktop, and there I use the MX Vertical, which goes crazy (speed maximized, a tiny mouvment on my desktop is a huge move on the screen).

So I go to the BTT settings, and they are same as yesterday...
I try to lower values of acceleration and cursor speed (and saving) : no effect. OFF/ON the mouse : no effect.
I lower the DPI : no effect... But after some OFF/ON, and a litte delay, my MX Vertical calm down, and cursor speed is low. I reset my settings to previous values (DPI=2000, Cursor Speed=1, Acceleration=2).
But after a OFF/ON, the cursor go crazy again... I had to lower Cursor Speed to 0,5, after anothe OFF/ON, the cursor seems not to go crazy again...

I had to set the same values for MX Master 3.

I must have missed what Cursor speed is...
I'll let you know if the mouse cursor gone crazy again.

What dou you think of those values:

image
image938×1220 135 KB

image
image938×1220 135 KB

12

the latest versions (e.g. 6.555) should resolve this, the mouse speed section now lets you decide whether you want the logitech hardware based speed setting or the macOS system setting

13

Thanks.
When shall I expect this new version to arrive in setapp ?

14

if you have beta updates enabled in setapp settings, it is now available

15

Ok, I'll go reactivate the beta in setapp :wink: