for-next: One million test. (2014)
Android 4.0 model with measurement.
Cortex-A9 Dual Core(1.5Ghz)
*The result is different depending on use CPU/OS.
for i=1 to 1000000
Sprite screen ON.
Sprite screen & V-Key OFF.
Measurement under the same conditions.
16.256 times velocity differential.
In the software using OpenGL mode,
Speed that actually feel will become more large.