When the deadline gets close and press feels harder. The compression in your chest suddenly becomes physical and your body is not making it easy to get the job done on time.
This is the Chinese finger trap idea again. If you allow the press to suffocate you, you will certainly not get the job done on time.
If you rush and press hard, but you relax and let it happen, not only are you a happier person, but you will get more done faster than you expected.
So rush, but rush smoothly.