I completely agree with you! It is not just ArrowOS, it also happens on other AOSP ROMs as you said. I am aware the developers are doing a great job, and therefore this is by no means meant as a criticism or whatsoever. I am just curious why this is the case!Well I said exactly why I feel otherwise in the first sentence of my post, usually MIUI is laggier and AOSP is snappier but on the Poco F3 in my current experience MIUI was extremely smooth but with quirks and a skin I didn't like and AOSP roms are my preferred interface and they usually have better battery life as well but even though usually they are snappier and smoother since they don't run a heavier skin like MIUI, this time around with the two AOSP roms I've tried they have a lot of weird hitching while scrolling and it's really diminishing the amazing experience of a 120hz screen. It's the only reason I'm wanting to go back to MIUI, that and the few features that are missing that I mentioned I suppose. I was wondering if anyone else was having this weird experience as well cause I would obviously prefer to keep using AOSP roms if they were as smooth as on my previous phones.