Buu Saga Vegeta Trained at 100x gravity in base
If Vegeta weights 200 lbs, his bodyweight essentially becomes 20k lbs at 100x gravity (10 tons) and he still moves easily
If moving 10 tons was even his base limit, With Super Saiyans 50x multiplier, he should easily be able to move 500 tons. due to years more of training, his strength should at least be doubled by here and 1000 tons shouldn't really be making him sweat like this