So your PC was old (thus the new one faster) and its HW no longer supported by some software developers (because it was outdated and not enough users were on it anymore). The same can hold true if you have a 5 year old PC now. You didn’t notice this due to going 64bit, you noticed it due to going away from a heavily outdated system.
At least here in Europa NA beers have improved wo much in the last few years. I literally don’t know when I last drank one with alcohol when I just felt like drinking a beer (as opposed to when I wanted to drink alcohol).
And since OP likes it fruity, (NA) Radler/Shandy is just great. It’s 50:50 (NA) beer and lemon soda mixed. This was one of the original ways to get a fruity beer with a lower alcohol content (since the soda doesn’t have any) when NA beers weren’t good yet, great for a hot summer day.