What happens if remote events are used a bit *too* excessively?

Hi. Normally when I make games, I use a lot of RemoteEvents and RemoteFunctions. So are there any negative downsides to using too much of this?

What happens when you fire too many RemoteEvent/Functions in a period of a few seconds? Does it cause lag or break anything?

If firing too much RemoteEvents is a bad thing, any way to fix it?