8MB per 10 minutes is about 13.6 KB/s. What was the problem again?
Not that I think that simply increasing the block size limit to 8MB is a good solution (I'd rather see
something more dynamic) but if 13.6 KB/s is actually a problem, maybe you should fix your internet, rather than debate over Bitcoin.
Miners cant wait 10 minutes to have their newly mined block trasfered to the next node.