RTX 2080 low performance

Good day. From desperation in trying to solve the problem below, I have already broken my head. In short: the memory of the video card heats up to 109 degrees and sometimes starts not only strongly, but throttling. I check all the indicators, looking for solutions to the problem - to no avail. NVIDIA support says that this is a normal temperature for Micron chips, but this, you understand, is such a thing.

But to the main problem: the most unpleasant thing, even without paying attention to temperatures, is the 3DMark benchmark results, which are twice as low as the average for 2080, ~ 11k against the average ~ 23k https://www.3dmark.com/3dm/72858986.
The results under load at 99% in the same WoT in the SD client on the Ultra graphics give out only 40-50 fps, Elden Ring gives out 40-45 even at low ones, but Doom Eternal managed to maintain 40-40 in quality with full ultras and RTX + DLSS. 50fps. Some kind of game.

In total, the only thing I can start from and show here at the moment is:
- GPU-Z and HWInfo indicators for memory temperature under load in the amount of 108-109 degrees
- an almost constant emphasis on Power in terms of PerfCap -
TDP even under load in around 50-60%
-jumping core voltage I attach a

link to the HWInfo and GPU-Z logs: https://drive.google.com/drive/folders/1pXLwe7eOOcbf5L9Gisrq7uoHCZ_jQxop

System configuration:
CPU: Intel Core i5-12400F
Video Card: NVIDIA GeForce GTX 2080 Gigabyte Windforce 8G
RAM: Crucial Ballistix DDR4 8GBx2pcs 3000MHz PC24000
SSD: WDC WDS480G2G0B-00EPW0 (480GB M.2 SSD)
Motherboard: ASRock B660M Pro RS
Power Supply: Cooler Master MWE 750W

I would be very grateful for your help, thank you.