In that last link it says there is background cpu usage of 20%, so 20% of the cpu is being used before you do anything. You should try and get that down to under 10% when the pc has just been switched on and finished loading after 5-10mins. It might seem a bit drastic but you could consider doing a fresh install of Windows if you haven’t done that in some time, and then keep the numbers of programs installed to a minimum. It is surprising just how much cpu performance programs use for peripherals, rgb lighting and other tasks we often install and set to run when Windows boots.
Apart from the high background usage I don’t see any other problems in that benchmark result.