Low FPS on Windows 10 and default use Integrated Graphics

Low FPS on Windows 10 and default use Integrated Graphics
When I played on Windows 7 the default Graphic Card was NVIDIA GEFORCE GTX 710M and AVG. FPS was 50-60
After I update to Windows 10 ,the default Graphic Card is Intel Integrated Graphics.And AVG. FPS is 20-30 now.
It can be a horrible bug and I cannot play Minecraft fluently
I installed the Drivers of Nvidia Graphic but still cannot use Nvidia Graphic in Minecraft

Snapshot
1.On Windows 7(before)
2.On Windows 10 (Now)