Flashcard app for my class, 200 students start Monday, will it hold?

Unsure about: PerformanceCosts

Right now 12 students use it and everything is instant. On Monday two full year groups get the link, so roughly 200 people in the same 50 minutes. Cursor built it on Supabase with a cards table and a reviews table that gets a row per answer. I have no idea whether that is a normal load or a lot.