Performance degradation in longer chats


I use Chat GPT4 a lot for scripting in Unity.
Therefore I start a script and add functionality step by step.
Which naturally creates long chats of iteration.

Today I thought that Chat GPT was down or sth, because the responses of chat gpt printing a script got incredibly low and also I had time outs. Also it started to write variables in capital case, use wrong methods etc.

Then I opened a new chat, pasted the state of the script and all of a sudden the performance increased again.

Not sure if this is a known thing or an issue, so I thought I post this here.