Do you have an Ad-blocker downloaded this can normally speed things up a bit.
or try Command prompt and type in ipconfig /flushdns it should tell you that the dns cache has been cleared so worth a try.
sfc /scannow. chkdsk.or defragment might help.
Or just go into Task manager and open up a few pages just to see what is using up most of the CPU.
Switch automatic updates of temporary to see if that helps.