fix for Metal 2 and GeForce 650m

Hi,

I'm opening this question since old one is closed. GT650m slow performance under 10.13 High Sierra

I'm having the same issues on 10.13.3. For now the only solution i have found is to de-activate GeForce and use only integrated Intel HD 4000 card. In order to do that i use gfxCardStatus from https://gfx.io. And use the "integrated Only" card this way my UI is almost as fluid as it was in Sierra. The intel hd 4000 is much poorer in performance than 650m but at least UI is fluid there is no glitches and in overal system is responsive.

That is me 3rd attempt to try 10.13 i will propably go back to 10.12 since we are quite @#$%#@ from what i saw in beta of 10.13.4. I tried the Nvidia web drivers, the performance of UI is a bit better but still not usable. It would be nice to hear some update from Apple about that whether they are working on or we are just left tou ourselves. My mac is a full blown ultimate edition of early 2013 retina so "in therory" it should run fine under high sierra.

Hope my workaround will help someone out there. And if someone have better solution please don't hesitate to share 😉