Request Timed Out before getting to ISP
Solution 1:
Well the usual suspect of Request Timed Out on a tracert scan is that node in particular has ICMP disable, basicly, it doesn't respond to ping requests even the there is something there. I wouldn't attribute internet slowness due to that. We need more detail about the network, or the ISP to be able to find that out. It could be anything to a bad DNS server or the bandwidth for the number of users your trying to serve, or if you are running a domain, the server might be overloaded.
Please provide more detail.