Surface pro 7 becomes very slow after sleep mode

Hello,

I have a surface pro 7 for ~3 years now and I remember experiencing this slow behavior after sleep mode like for ever. It has an Intel Core i5 - 1035G4 CPU.

Having observed the CPU speed from Task Manager these last days, I see that normally it runs around 1.8 GHz when I don't do much, and when the problem arises after sleep mode, I see that the CPU speed does not get greater than ~0.5 GHz. 

These last days I also found solutions on the internet about reseting the graphic card with W+Shift+Ctrl+B or by turning off the self panel refresh but these do not solve the problem. I also set the min processor speed to 100% from control panel, did not work either. I also tried another solution that suggested to set the number of processors to 8 in MScondig > Boot > Advanced Options. For this last one, after sleep mode, the CPU speed was not stack at 0.5 GHz but around 1 GHz, still was slower than normal.

So any other ideas out there?

Overall, this PC is very disappointing. It costed 1500 EUR and made by windows, one would expect it should perform better than an HP/Dell/whatever manufacturer, but its performing worse and it has been a pain in the **bleep** like for ever. I read the same problem arises for later versions pro 9, pro 11. Surely the sleep mode creates problems for all laptops, no matter the manufacturer. I experience problems after sleep mode for an HP laptop I own and for my Dell work laptop. But the problem from the surface is the worst because the PC becomes unusable. You have to shut down to get the speed back.

Anyway, if you have any idea, please let me know. Thank you!