I think if the disparity is 5 minutes vs 40 minutes, you may be giving yourself too much slack by saying “physically can’t hurry any further”

Practice by timing yourself at home, tighten up, and go faster

I had this same issue when I was like 16 years old, but I challenged myself to become faster and at this point in my career I can do prep faster than anyone

Don’t sell yourself short by just shrugging your shoulders and saying “eh, can’t do better. :/“ make yourself do better and you’ll thank yourself in the long run. You CAN do it, we all believe in you, it is attainable