I use esteem mostly for viewing posts - sometimes I will use it to post a photo taken with my phone that I don't want to include a lot of text. When scrolling through posts, the farther down I go the slower it goes. This not as pronounced on the website with my laptop. There have been a few updates however that have improved the expeience.

I really wish it would allow sorting the follower list by date followed so I could see who recently followed me.