Here's is my take on this.

Most math taught until Geometry is just arithmetic. I'd not worry too much about it.

BUT, being fast and intuitive is a great skill to have. And the only way to get it is to do drill.

Being able to finish exams' easy questions and leave time to finish the harder ones and get a 100% on it rests on the ability to do perfect work quickly.

Sometimes you are drilling the wrong way. You may want to take a step back and look at what you are doing.