Hmm… I’m using the latest nightly on my Windows 7 x64 setup and I am frankly not perceiving any substantial change right now if compared to the previous versions of Retroarch and bsnes. 2 full frames of delay and Mario World feels exactly the same.
With the same configuration used with version 1.2, I am still registering the same stark and blatant difference in immediacy between some very responsive system cores (like NES, PS1 and especially GBA) and all of the SNES ones, which give a sluggish impression still to this day.
I have noticed the new Poll Type Behavior option which is definitely interesting. As far as I could gather, it is wise to leave it at ‘late’ since it should poll inputs quite more timely, but I understand it is something that applies to the ecosystem as a whole: any and every difference that existed between the individual cores in terms of latency would still be maintained.
Moreover, the “Disable Desktop Composition” still seems to be broken in Windows 7, which is unfortunate since eliminating that would determine an even more reactive experience and I remember it did work around version 0.99.