If you're using pinpoint against the CPU, then yeah it's going to be easy. It's designed to be used against humans. Use classic pitching and allow the pitchers attributes to determine what happens.
If you still want to use some kind of meter, then turn down the human control to 3 and consistency to 2.
Also I think I've read that the competitive setting makes pitching easier against the CPU, versus the simulation setting. But I can't remember exactly what was said about it.