[SOLVED] Why am i getting this low amount of fps?

[Adoul]

MSI RTX 2070
i5-7400
MSI B250 Motherboard
Hyperx Fury 16GB DDR4 2666Mhz Memory 2x8
Samsung 960 Evo SSD
XMP is On. PC is secondhand. Drivers updated via Geforce Experience

I have noticed that my cpu is at 100% most of the time while my gpu is at 40%.
Im geussing my cpu is bottlenecking my gpu because of this but that doesn't explain what is happening while playing some games.
While playing most games when I have anything else open my game and discord start lagging. So I try to have as little open while play games.
In Rainbow Six Siege I get decent fps but not as high as i'd expect with my hardware. Because of this I need to lower my graphics a bit which is ok.
In Modern Warfare (2019) however it won't even give me 60 fps most of the time. To be able to even play it I have my graphics on the bare minimum and am playing on 720p.
I looked up stuff but couldn't find any real solution. Weird too that it used to give me playable fps a couple months ago.
Looking up a few videos of people playing MW with a i5 7400 and a worse gpu than I have they get way more fps than I get, even 60 fps on MAX settings.
Am I doing something wrong? Is there some setting I missed, is my hardware just bad?

 

[Eximo]

Power supply?

If decreasing graphics settings doesn't improve performance, then it is your CPU that is the problem which is indicated by the 100% CPU usage.

Check for overheating first.

RTX 2070 is a good thing to have. Replacing the CPU/Motherboard is pretty straight forward if you want to go down that route. Could drop in a i7-7700 for a decent boost in performance, but it makes more sense to get something like an i5-10400 or i5-11400. Go from a quad core to six cores with hyperthreading (12 threads) That would help in a lot of modern games.