Most of these programs are bloatware or adware . At best, they do things you can already do for free in your settings; at worst, they run in the background, consuming more resources and actually slowing you down [1].
Many free tools that promise to "unblock" your RAM or "boost" your internet speed are fronts for data harvesting. Why Should I Not Make My Computer Faster for Free?
Faster speeds generate significantly more heat. Without a high-end aftermarket cooling system, you risk thermal throttling (where the PC slows itself down to avoid melting) or permanent hardware degradation [3]. Most of these programs are bloatware or adware