Render Duplicate Frames to 60 Hz Option

[pirohiponotic]

I've seen this option presented in the setting menu and tried to turn it on. However, it did not seem to work as intended. The frame counter still showed my games running at 30 fps and I can visibly see it was not as smooth as 60fps.

The games I tested were Phantasy Star Portable 2 and Final Fantasy Type 0.
The settings were:

Backend: OpenGL
Mode: Buffered Rendering
Simulate Block Transfer Effect: On
Render Duplicate Frames To 60 Hz: On
Buffer Graphics Commands: Up To 2
Hardware Transform: On
Software Skinning: On
Vertex Cache: On
Spline/Bezier Curves Quality: High
Hardware Tessallation: On