Multiplayer, slow chunk loading and or read timeout kick

Ever since 1.3.1 ive barely been able to play on a server, the multiplayer menu will take around 30seconds to establish a connection to a server and it says the ping is 600-15000 even on servers in my own country. When i login the map will load at a crawl, i will have to stand still for 3mins for the map to load so i can do something. I switched back to 1.2.5 and it works perfectly so its not a connection issue. Ive tried uninstalling all java versions then re-installing the latest, uninstalling my virus program, cleaning registry, turning off firewall, port forwarding my router. Nothing has had much of an effect.
Pining the servers with CMD brings up normal pings so its something in minecraft causing this. Also tried the 13W07a version and it still has it.