Hi,
I've just bought Minecraft, just downloaded the FTB launcher, and started the Direwolf20 1,7 modpack.
I created a brand new world, and it's completely unusable. My PC is running at basically 100% CPU, lag is totally unplayable. The pack is "Direwolf20 (v1.3.1) Minecraft Version 1.7.10".
My PC is pretty new and powerful - Core i5-3570K, 4 cores, 16GB RAM. I'm running Windows 8.1 64-bit. Graphics card is AMD Radeon 7800 with 1GB video RAM. It runs every other game I've tried flawlessly.
Can anyone suggest what might be wrong? I really only bought Minecraft intending to use mods, so I'm pretty stuck at the moment :-(
Thanks,
Paul