Not posting from the app obviously since submissions aren't supported just yet, but the app is otherwise awesome so far!!! Really well done ljdawson, just wanted to make this post to say thank you. I signed up for sync ultra right away.
My lemm.ee account crashes it too with a LOT of subscriptions. My other account with zero subscriptions doesn't. I think if you have too many subscriptions it's a problem.
I made the compromise to use Sync with an "empty" account for now and I'm sure these kind of things will be ironed out in a couple of days/weeks. It's a very complicated piece of software, so sometimes things do be like that.
Interesting... I have zero subs on my lemm.ee account and haven't seen any problems with it yet... Quite a few on my lemmy.world account but I think most of the problems I've seen there have nothing to do with subs.