I've got a new laptop with only Intel i5-6200U CPU+ Intel HD Graphics 520.

I've installed SLED 12 on this laptop and I noticed that the graphy of this OS is not so good. When I move the a program window I can see it lag behind very obviiously. Meanwhile, some program need better GPU support can be crashed very easily.. THis probbly because the driver is not so good. Since I updated to the latest driver from SLE repository, the situation become even worse.....

I am just wondering is there any good driver for this GPU?

thx a lot