@marques-1998
Your screenshots show that the BIOS is not setting your CPU up correctly. Are you using the most recent BIOS version? Is it set to default values?
You can try fixing this problem by using ThrottleStop.
Open the FIVR window and increase all of the individual turbo ratios by +4. ThrottleStop shows the correct default values,
42, 41, 41, 40
Your BIOS has set the turbo ratios to
38, 37, 37, 36
That is why your CPU is being limited to the 3600 MHz base frequency. Someone screwed up.
I would also use ThrottleStop to enable Speed Shift Technology. Check the Speed Shift box in the TPL window to do this. You should see SST light up in green on the main screen when this is done. This technology allows the CPU to get up to speed much faster when it has a task to perform. The CPU hardware can manage its speed much better than Windows can. It is inefficient for a CPU to have all cores stuck at the 8 multiplier when it is idle. CPUs are never idle. When a task needs to be performed the CPU has to be allowed to get up to full speed as quickly as possible.
With a desktop computer it is not a bad idea to just use the Windows High Performance power plan so the CPU can run at full speed all of the time. Intel CPUs do most of their power saving when cores enter the low power C states like C7 when they have nothing to do. This reduces the speed and voltage of individual idle cores to 0. Post a screenshot of the C States window when your computer is idle.
After these adjustments do another round of testing. When you fix a problem or two there can always be a new problem that pops up.