Using Bluetooth there will be always lag. It’s obvious. There is a big difference.
Of course there will be lag, there is also a lag with wired mice.
But can you notice it? Maybe there are some high sensitive folks that can notice the input lag but for the normal eye the input lag is too minor to notice it.
I am with
@adamlbiscuit for this one, Apple has not enabled smooth scrolling with third party mice.
Funny enough I was struggling with it myself as I am using a Logitech MX Master 3 through Bluetooth on my 14” MacBook Pro. I find the LogiOptions software (stable and beta) too buggy and the smooth scrolling option isn’t that smooth as with the trackpad.
But after trying a lot of different apps like USB Overdrive and MOS I just stick with Logitech Options as this gives the best experience for myself.
As for MOS: I like its smooth scrolling option but there is a big lag between the physical scroll of the mousewheel and the scroll onscreen. With Logitech own software this is realtime but a bit choppier.