Strange behaviour with buffered rendering

[Apology11]

Apology11 with an xperia s (same device as me) but running on Ice Cream Sandwich , hits 48 fps in cube.elf with buffered rendering enabled and 33 with it disabled. My xperia s on Gingerbread hits 49 fps with buffered rendering enabled but 60 fps with it disabled.it's getting fun

My Xperia S runs Jelly Bean Custom rom.

What settings did you use?

Here are mine:

[ ] Sound Emulation
([ ] See my post)
[x] Hardware Transform
[ ] Draw using Stram VBO
[x] Vertex Cache
[x] JIT [Dynarec] [x] Fastmem


Also which build did you use?

I used : v0.6-51-g3ff46cf

sorry, i thought i was seeing 4.0.1 in your post . now i know that i need glasses
anyway i used 0.6 - revision 49, build 3ff46cff05
with your exact options enabled

It was 4.2.1

Anyways I checked it again with a liitle overclock this time:
Got 53 with buffered rendering and 2x res this time
And 37 without.

Really strange, maby you can try rev 51 too?