That’s an impressive achievement, and one that you should be proud of! Good luck following through on the remainder of your goals.
As far as your weight affecting handling, I would think so, though it’s always an area of debate among riders (and cyclists). While I think Munch may have a point that you’ll feel quicker off the line, I’d imagine that the biggest difference will be when you are doing more aggressive riding. I predict that you’ll find that bike turn-in, especially change of direction from one side to the other, gets quicker and more responsive. Let us know if you notice anything though; I’m really curious now!