Remnote keeps crashing

since this morning, my remnote is acting up especially in queues. is it just me?

whenever i try practice queues, it keeps lagging and crashing. the browser becomes unresponsive. but yesterday it was fine and the previous days.

i’ve got a lot of imported cards around 40k+, is that a factor?

i’ve got an exam coming up, and all my notes is in remnote. hopefully someone can help huhu