Unleashed

[cerbralone]

I do not know why but when I am playing the FTB Unleashed modpack, I have to wait 20 minutes for it to load then i have constant lag in-game. I have graphics set to medium, although my computer is a pretty high end computer so I do not understand why it is so laggy. I assume it is due to TC being in this modpack.

 

[jedshed]

You could try disabling TC (Thaumcraft?) in the launcher and see if it is at the root of your woes. Have you got optifine installed? Are you running a texture pack w/o optifine? SSP or SMP? Have any other launchers / modpacks worked in the past much better? Are you launching with a bat file to give more memory to java? What FPS are you getting? Is there no lag if you reduce all settings to fastest / no anims etc?

 

[Ashzification]

Well, to start, we need some information.
Which modpack/version-Some versions of the modpacks are very unstable and can cause more lag than others.
Operating system/bit type
Java version/bit type
Added JVM arugments
Amount of RAM allocated
Other processes running during play
In game machines/chunk loaders/etc.