1) Big weight! It is really heavy :( To move the mouse, lifting it above the table, you need to make a conscious and noticeable effort :( (do not recommend increasing the sensitivity)
This slows things down. After some time you get used to it, but still I don’t see the point in heaviness. It's funny that for office purposes, mice are specially made heavier and advertise extra. weight, and for gamers - specially facilitated and also advertises it! Marketing goes against common sense and people's convenience :(
I have a Logitech G305 gaming mouse - here it is just super in weight!
2) Humpback profile, high height. Again, marketers tout this shape as ergonomic and comfortable, but for me (even though I'm a big boy with a big paw) it's not. You can’t just put your palm on the mouse, because then the brush will press and slow down the mouse, again, you can’t quickly lift the mouse. Therefore, the higher the mouse, the higher you need to hold the brush, and again, compared to the G305, the bend turns out to be a little bit, but painful and uncomfortable.
3) Insufficient DPI or MacOS bugs. I suspect that the problem is in MacOS (I work on it) - the accuracy and responsiveness of the cursor is somehow kalichnaya. Again, worse than G305 on Windows 10. That is. miss the UI more often. If you reduce the sensor, it is inconvenient to move from corner to corner of the screen, if you increase the sensor, you miss the buttons . The G305 on the macos seemed to be just as crooked . And the M720 did not use Windows.