Different SR on different accounts why?

on my main account I went to high plat…in 2 season reached almost silver (solo q is hell)
on ult account started off low gold…now I’m plat

why is there so much of a gap between 2 accounts…if it’s the same person shouldn’t the SR be around the same?

Performance based SR. You don’t perform exactly same for every match lol.

um but if I perform the same overall on average shouldn’t my sr on both accounts reflect that? shouldn’t the both be around the same give or take 200 sr?

idk I find it weird

Well, SR system is weird. I don’t know the details. But funnily, if you 1 trick,you’ll end up around 500sr above your flex SR. Weird but better to 1 trick if you want to get to specific rank.