Technically there's a cap at 1Gbit. Your speed's determined by the formula:
[Your Speed] = 1Gbit / [# of people downloading]
I've been noticing that downloads here ae much slower than stuff like steam where I can download a 1gb file at the most in 1 minute vs 30 minutes for a 700mb file. IDK if its the site, my browser, or my internet crapping out.