Absurd script times causing servers to slow to a crawl (frame per minuite)

Very recently 2 separate experiences of mine have had issues with servers becoming unresponsive due to absurd script execution times.



when this is happening the server basically stops, you don’t get disconnected instead the server runs at like 1 frame per minute. This has caused alot of issues, I have been unable to play one of my experiences as this happened 3 times in a row. I have no idea what could be causing the issue, the server micro-profiler doesn’t work in this state, it just returns empty. However sometimes the server can “recover” to about 5 frames a second, which allowed me to get a profile out of it say much (I will include it in the private post as well as an empty one that I got)

A private message is associated with this bug report

1 Like

Hey! I’ve noticed a similar thing happening to my game. Are you opening the game console by any chance? For me, my game servers run perfectly fine up until I open the developer console, which causes it to lag permanently.

I filed a ticket here if its similar:
My game’s servers permanently lag after opening the console as a developer. - Bug Reports / Engine Bugs - Developer Forum | Roblox

Same thing happening to me. Everything works fine until I open the server console. When I do so, the ping keeps rising infinitely. The server performance does NOT seem affected, if I go in ServerJobs the steps/s stay the same, it just seems to be the client-server communication slowing down infinitely. Look what happens the moment I open the server console and use the same attack I used while it was closed:

And from there the ping just keeps going up, while the server itself remains unaffected.
Scrap that, the server performance is also affected. Goes from 60 steps/s to 10-40 whenever I use an attack or try to communicate to the server.

I can confirm this is related to the Developer Console. In my case:

  • Server runs fine at 60 Hz RemoteEvent traffic
  • Opening the console triggers the issue
  • Average data ping climbs continuously (65ms → 300ms → 3000ms+ etc)
  • All server requests are blocked
  • Closing the console does NOT restore normal operation - server remains unresponsive, but players stay connected

I only observed this on live servers, not in Studio.

This is a recent regression.

EDIT:
During debugging, throttling high-frequency RemoteEvents (60 Hz → 10-30 Hz) prevented the issue from occurring. However, the bug appears intermittent - after further testing at full 60 Hz rate, I could no longer reproduce it consistently.

You guys are right, it is the developer console

1 Like

Duplicate of Severely Degraded Server Performance when Developer Console is opened. - Bug Reports / Engine Bugs - Developer Forum | Roblox