This is what i learned from the VRJam.
The default template for first or third person are not optimized for Gear. For example: The sky as well as the shaders on the default fps template’s player arms/gun will make a impact on performance.
If you want a smooth project avoid reflections, transparency and optimize your models/levels so they make the least amount of draw calls.
Also don’t try to push it to it’s limit while barely maintaining a steady 60FPS. You can make some really beautiful things with this engine (as well as unity) however you’re just gonna overheat everyone’s phones.