Normal
Yeah the 3080 FE cooler is just not made for this style of case. I can only imagine what your vram temps were if your core was 83c. The 3080 FE is designed to thermal throttle at 83c so in actuality your card was thermal throttling and would have been way hotter if not for that. I bet your vram was well over 110c. Not good for longevity of the card. You could always watercool it with an external radiator like I did with mine. Put the radiator under your desk and you won't even see it!