slow motion

You ran everything referring to what exactly? You do not sound like you necessarily have malware issues.

 

You also left out the logs from Malwarebytes, ComboFix and RootRepeal but we don't need them. Your problem is your PC spec which are totally inadequate to properly run Windows XP. Your logs show the below:

Code:

OS Name Microsoft Windows XP Home Edition
Processor x86 Family 6 Model 8 Stepping 3 GenuineIntel ~598 Mhz
Total Physical Memory 256.50 MB 
Available Physical Memory 21.03 MB 

You need a much faster processor and you need at least 4 times that amount of memory.

And if that is not bad enough, you are almost out of hard disk space:

Free Space 843.46 MB (884,436,992 bytes)

This is way too low for the disk caching that needs to be done.

You need to purchase a new PC.