I played your modpack like 1 month ago and everything was fine, but now I have reinstalled and I have problems with 1fps

• Client/Server Log: http://rgho.st/8Sph9ShCr

• Crash Log: no crash
  

• Modpack Version: 3.08

• Launcher Used: 1

• Memory Allocated: 6144mb

• Server/LAN/Single Player: Single Player

• Optifine Installed: No

• Shaders Enabled: No

• Additional Content Installed: No

UPD :
GPU : Sapphire Radeon RX470 NITRO+
CPU : Intel core i5 3340
RAM : 12gb ddr3

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You should probably check F3 whats going on. Maybe you limited the game to 1 FPS by accident?