VR profiling, STATS UNIT doesnt match with GPU Profiler

Hi, my game is a VR game and i realize the time taken to render a frame in stats unit is twice of the time taken from gpu profiler.

Isit because it needs to be renderered for both eyes?
Do I need to optimize furthur to 90fps? but how? There is no dynamic lighting in the scene and all the meshes have LOD.