Sorry for any wrist strain . Now let's feed this clock signal to your computer's processor. The processor depends on this signal to tell circuitry within itself when to perform things. The faster the clock rate, the faster the processor will perform its operations, but up to a point. The methods used to produce the processors inherently set limitations on speed and other operational parameters.
Processors keep getting faster all the time.
But what we consider a screamer today, will likely be considered a sleeper in just a few years, or sooner. How fast the clock is running can be an indication of how fast your computer is when compared to another computer. Some processors internally divide the clock down to a lower frequency enabling them to perform certain functions. The result is that the computer runs slower. Your computer's speed depends on more than just clock frequency.