CPU Increase Each Time Comp Wakes Up From Sleep

I recently noticed this strange behavior in my pc. When I restart my computer, cpu usage will stay around 20%, and fluctuate the usage of my processes (system host and firefox being the big hitters) to maintain this general figure. Upon putting my computer to sleep and reawakening, the symptoms are the same, except the usage hovers around 40%. This will continue until usage hovers around 99-100%.

I also just noticed that your TSG SysInfo (included below) says i have windows defender disabled, but I have been under the assumption that it is enabled. It has been since i uninstalled AVG as this was once a heavy hitter in my processes and I thought a cause to some of this.

Before this I didn't think this was a virus, because I've run multiple malware searches including malwarebytes in and outside of safemode but now I'm not so sure.

Also most likely related, my pc takes (literal) hours to shut down.

OS Version: Microsoft Windows 8.1, 64 bit
Processor: Intel(R) Core(TM) i7-4700MQ CPU @ 2.40GHz, Intel64 Family 6 Model 60 Stepping 3
Processor Count: 8
RAM: 16178 Mb
Graphics Card: NVIDIA GeForce GT 750M, -2048 Mb
Hard Drives: C: Total - 905049 MB, Free - 561457 MB; D: Total - 25599 MB, Free - 22620 MB;
Motherboard: LENOVO, 20217
Antivirus: Windows Defender, Disabled