ScrollView with big content has performance issue

Hi,

I’m using scroll view for a big vertical layout content, which has a lot of items, and noticed that there is a huge performance drop when I try to scroll. I have 500 items , but I checked that even with 50 the performance sucks. Why the part of the content which is not visible causes such kind of a problem? Is there any solution or workaround for this case?

do you have some kind of update code running on all 50 objects?

no, I have a prefab with a couple of buttons and editBoxes , and I create a list of that prefab with a lot of items, and I have both performance problems and also scroller sometimes doesnt scroll the item but the whole Canvas, which is weird