Constant Lag Spikes

When running on my Intel HD Graphics (Integrated) at max settings, the game runs at approximately 30FPS with no lag issues. When I run it with my dedicated NVIDIA card, under the exact same settings, I get extreme bouts of lag spikes (Down to about 2FPS) after running about 58-60FPS while the world loads, rendering the game basically unplayable. Reverting to 1.8.8 fixes all these issues.

Graphics Settings used:
Fancy Graphics
Render Distance: 32 Chunks
Smooth Lighting: Maximum
Max Framerate: Unlimited
3D Anaglyph: Off
View Bobbing: Off
GUI Scale: Normal
Brightness: Moody
Clouds: Fancy
Particles: All
Fullscreen: Off
Use VSync: On
Mipmap levels: 4
Alternate Blocks: On
Use VBOs: Tested with both on and off to the same effect
Entity Shadows: On

In addition, no resource packs are being used.