SketchUp 2017 Really Slow

I just installed the SketchUp 17 because i was having trouble with SK16, but aperently the problem persist.
The problem is that when i open SK, everything lags, i cant select propper or pull or anything.
I try many things and realize that runing SK17 with the internal card resolve everything.
What can i do to run it again on my external video card?

install the latest graphics card driver provided by the maker of your notebook first (and not directly by nVidia) even if older.

Goto Window/PrefernecesOpen GL and Un checked the - Use Fast Feedback:box. I’m running on a new GTX 1070 and I was horrendously slow until I unchecked this box. Now runs fine on big models…