What does a splitter do in baseball and how does it affect a pitcher's performance on the mound?

A splitter is a type of pitch in Baseball that looks like a fastball but drops sharply as it reaches the plate. It can be difficult for batters to hit because of its late movement. When a pitcher throws a splitter effectively, it can deceive batters and lead to strikeouts or weakly hit balls. This can improve the pitcher's performance by keeping hitters off balance and generating more outs.