Uploaded windows 10 drop fps from 300 to 80 fps ... (game dvr off)

Hello, I will describe my problem from the very beginning I decided to buy an SSD, so I decided to say goodbye to my old operating system which was windows 7 64-bit in which I downloaded calmly 280-300 fps in CSS, it ran very smoothly. After switching to windows 10, 64-bit also managed to achieve fps 300 in csgo, but after turning the computer back on, the fps dropped to 80 ... And someone would tell me as much as possible if I wasn't poking around, I left it at rest and now I have little fps that nothing can be done where these fps have disappeared I will add that I know that in win 10 you need to turn off dvr from the game I have already done it .... I will add that all the startup parameters for csgo have been entered, I have my own config. Everything was speeding until ... I will give the specifications of the computer ...
Graphics card: AMD Radeon R9 200 series
Processor: Intel (R) Core (TM) i5-4460 CPU @ 3.20 GHz
Ram: 8GB
All drivers current. Please help!

I remember that I turned off the .reg file in the dvr registry, they write about it here https://steamcommunity.com/app/730/discussions/0/360672383113990174/

..but I won't give it a head

Show real-time CPU / GPU / RAM and SSD usage when you play.

Such monitoring can be obtained in Afterburner.

https://www.youtube.com/watch?v=WjzCxAR6gh4