Forge (No Mods) Causes Low FPS - PLEASE HELP

[Ahrasol]

Hello, for some reason whenever I run forge my fps drops to 20-30 - In normal MC I get 300-500 fps.  I dont understand this, because I've never heard of forge decreasing fps before!?

Using Forge 1.7.10.  I've reset my PC several times - cleared all my files, no solution  

 

Heres my specs in case you need them:

Windows 10 

64 Bit

Intel(R) Core(TM) i7-6700HQ (Overclocked) 

CPU @ 2.60GHz, 2601 Mhz,

4 Cores,

8 Logical Processors
 

 

idk plz help