You'll need to use pitch control extensively if you want to beat match your vinyl as quickly as possible - although it is possible to DJ without using pitch control, more complex beat matching tasks will require you to be comfortable with using your pitch control slider.
Beat matching is the skill of getting your two tracks moving to the same beat - you need to match the beat of the record you're about to cue up with the record that's already playing. Here's how to get started with this DJ skill...
If you want to do anything with your records beyond putting the needle down at the start and playing the track right through to the end, then you need a direct drive turntable...