Hi! 2 years ago, I upgraded an old Optiplex 790 that had a i5 2400 with a new PSU (450 watts, bronze), 1060 3gb, and a network card and eventually upgraded to an 860 evo and more ram. Recently, I noticed that the system was slowing down whenever I would open a chrome tab while playing a game, like Rust or DS3, and generally just low FPS even though the GPU was at around 60% usage. I was looking through task manager and had a temperature-recording program running, but the CPU clock speed was the same as stock and temps were mid 70s. Task manager reported full CPU usage, even without the chrome tab. I've also ran I think Aida, with no thermal throttling. I also run very few background apps, being nvidia, Office 365 for school (rarely any documents being loaded), steam, and task manager. From what I can tell from task manager, the game uses about 80% of the CPU (at least that's what I remember, I'm away from my computer right now, it may be more). I'm not looking for huge performance gains but a consistent 1080p 60fps medium/high in more demanding games and much higher in CSGO and Siege. I've also noticed that my games run about 20fps better when I'm not on discord then when I am. Would upgrading to a i7 2600 solve these issues, considering it has hyper-threading and a slightly higher clock, or could there be another factor I haven't considered tuning?