Composer getting dumb on Slow request?

While I’m still within my request threshold (e.g., Pro, 500 req / month), things work fantastically. Composer takes my files, doc, codebase, notepad, basically, everything I throw in, and it just gets the job done without breaking a sweat.

But recently, I’ve run out of monthly fast requests (rarely, due to this month’s workload), and I noticed it getting really … dumb. It is the same or even a much smaller amount of context input, but it is still unable to do right and sometimes breaks stuff.

Things get done as usual with simple requests or maybe just 1 or 2 short notepads.

Does slow request reduce context, too?

Has anyone felt the same?