I've been trying to play Minecraft: Feed the Beast with my friend. We decided to download the Mindcrack pack. The server is installed on my friends computer, and I downloaded the client and hamachi to connect. My friend can play fine, but I get extreme lag.
I can destroy blocks, but the items hop into my inventory after about half a minute later.
We're using skype too, and note that when playing Vanilla Minecraft we are able to play smoothly.
Any ideas why I can't play properly?