It worked 2 days ago, now it doesnt - opengl related

[code99]

Hello,

Can someone help me please?

A couple of days ago (last time i played ksp with opengl force) i was playing ksp, it was going great, good fps, no issue whatsoever ...

Then, i decided to try and force dx11 instead after reading on the forums that people were saying it also reduced ram usage while maintaining good quality ... it didnt work for me, the game reached 3.5 gb in ram usage and it then crashed.

I then switched to opengl but didnt try launching the game.

2 days passed and now i wanted to play again so i made sure opengl was forced, started the game, loaded my save and my fps was just horrible out of the blue. I would usually get from 50 fps to over 60 in any given situation but now, in VAB i get 40-50 fps with no craft loaded and around 25-30 fps with a small craft loaded (with merely 42 parts).

And, thats no problem, i can work with that but when i tried to launch this rocket, i would be lucky if i had more than 20 fps at the launch pad ...

Why? I dont understand this. I didnt change anything in my computer, software or hardware. It was working flawlessly 2 days ago even with large rockets!

My game is modded ofc, i didnt change anything about my mods either.

Im running the game on a brand new system:

i7 4790 CPU

Sapphire Radeon R9 290 OC 4GB GDDR5

8 GB DDR3 HyperX Savage RAM

Asus Maximus Ranger VII motherboard

Win7 x64

1440x900 widescreen monitor

Help?