Well still need to know what cpu you are using ?
I would suggest one of the following tune up programs which will fully optimise your pc in trial mode.
https://www.ashampoo.com/en/usd/pin/4606/system-software/winoptimizer-12 - I have this one myself & find it quite good after a little tinkering.
http://www.tune-up.com/ - I used to use this but they brought out the yearly subscription thing unlike win optimizer 12.
I think you should use Tune Up Utilities to start with as that will tell you what startup programs to disable as it soun d like you have a few apps running taking up cpu %.