80 kB/s is 640 kbps, more if there's extra overhead to count. It's not blazing fast, but it's not really horribly slow either. Some servers will only give you about that...
Anyway, doing the math:
2 GB = 2048 MB = 2097152 kB
/ 80 = 26,000 seconds
= 7 hours
...the result is: you'll live. Leave it on overnight or something. The only thing that'll catch you is if you have a low monthly data cap or something.