FPS vs game complication question

I am not sure if this question belongs in this category but at what fps can the game start to malfunctions and data loss could occur?

i’m unsure what you mean, and potentially afraid you don’t either, data loss is unrelated to the client, its handled on the server.

I made a fps tester once and I want to remake it. The problem was that at a certain amount of parts spawned the parts wouldn’t be deleted by the script and I don’t think my data would save properly

So if I make a bunch of parts spawn at once and I spawn so many (bc of stress test) to the point the game slows down and then when the player clicks stop and the script fires a remotevent can the data that is being transferred with remoteevent to server corrupt or fail bc of the lag?