Why do I experience extreme lag but my friend does not in Minecraft FTB? [closed]

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?

Solution 1:

MOAR RAM

On a slightly more serious note, kill Skype. It's using precious resources. Get rid of Hamachi and learn how to port forward. The more things running at the same time, the more lag you're going to experience. Get OptiFine, but turn off all the stuff you don't need.

Solution 2:

To reduce lag on the client side (where I think your lag is), you should set render distance to Normal (or shorter if you have an older computer), set graphics to fast, disable clouds, turn off smooth lighting, set performance to balanced, turn off particles, and, if you have a newer computer, turn ON Advanced OpenGL. If this issue persists, you can grab OptiFine (use the light version if you just want an FPS increase, otherwise go ultra) and then open FTB, then click Edit Mod Pack > Coremods > Add Mod and add the file you downloaded. Hope this helps!