Slow CPU

[Mwale-Nkandu]

I want to play games on my laptop but they only run smoothly when my CPU is running at the full speed of 1.90GHz but most of the time its at 0.49GHz and my games will have low framerate. Sometimes it will be 1.90 and sometimes 0.49 and I don't know what causes it to slow down. I've tried changing my advanced power plan settings, which did not work. I've tried editing stuff in registry editor like tutorials say and the result was the speed saying its gone up however the laptop was still acting as if the speed was still 0.49. It is just unpredictable. I need help. My CPU is Intel Pentium 3825U @ 1.90GHz. 

[WAWood]

@Mwale-Nkandu 

Your laptop uses a Pentium processor -- and it is not a gaming PC.  No amount of tweaking is going to turn it into one.

[Mwale-Nkandu]

But why is the speed so inconsistent? For example 5 minutes ago I've been playing fine with the speed at 1.90 again for about 2 hours. What dictates whether it wants to be fast or not. Im just trying to play sims 4, nothing demanding. 

[WAWood]

@Mwale-Nkandu 

I really have no way to answer that definitively as I have no access to your PC and no way to monitor the performance.

One thing that could be a major contributor is heat.  Forcing the processor to work real hard, which is going to happen when gaming on a PC with a entry-level processor, is really going to drive up the heat -- and in many cases, the processor is designed to automatically throttle down in those circumstances to prevent it overheating and burning out.

This would be most like the case when the game performs well after a cold start but then after a while, the frame rate drops because the processor has throttled down.