age and lifts

I see a lot of older folks on the Facebook CF Masters page that lift some really heavy stuff. Crazy heavy. I'm 49, been doing CrossFit since 2012 and I'm at 350 lbs back squat, 400 lbs deadlift (what's up with that?) and only 215 lbs for bench. I can power clean 175 lbs. Been doing Wendler most of this time. My clean and snatch are works on progress. I'd love to get a 400 lb back squat and a 500 lb deadlift and a 300 lb bench, but with my current programming I don't know how I'm gonna get there as I've been at these numbers for a year. I have been on a cut since October and I've lost about 20 lbs (I weigh about 220) and I'm sure that has something to do with it (don't make fun of me). I see folks smaller than me with bigger numbers and I want to get there. Should I be satisfied with my current numbers?

age and lifts