Lying Leg Curl vs. Seated Curl

I do look good in spandex.

I have a lying leg curl in my home gym. Real gym has seated. 50lbs will destroy my knees/hams in less than 10 reps on lying. Seated I can hit 20 at 100lbs, I’m pumped and can’t walk or stand, but there’s no pain. Just seems like such a huge jump in weight and pain level, makes me wonder.