Investigate general system slowness and intermittent loading failures

Summary

The system has been experiencing general slowness over the past day, with posts and actions failing to register. Users report loading issues and slower-than-usual performance for unclear reasons. This may be related to the Content-Length header issue, database load, or an infrastructure problem and should be investigated holistically.

Steps to Reproduce

1. Attempt to load any page or perform actions (e.g., posting) on the platform.
2. Observe that loading is slower than usual and actions may fail to register.

Expected Behaviour

The system should respond promptly and reliably; posts and actions should register without failure.

Actual Behaviour

The system is generally slow, with intermittent loading failures and actions not being registered.

Environment

Not provided.

Reported by retoor via DevPlace.