Pause

What is all this pausing about? Why stop in the middle of a lift and just hang out for three seconds?
The hope is that the pause gives you the chance to analyze the position you are in and if it sucks, to fix it. Are your shoulder blades down? Are you on the correct part of your foot?
Another benefit is that you are making your body memorize those good positions (assuming you can hit them and/or fix them) so that when you go to do the lift at full speed, the correct position will just happen.
So take a moment. Pause and take stock of your position.