alright cool. this is what I used for emulator http://www.mediafire.com/file/rkh8801mo2i40sr/gambatte_qt_win32-r571+%281%29.zip
what im saying is that the game itself appears to be clearing the blocks faster than they should
"because it starts earlier from an earlier input before the actual start" eh? the boards all load at the same time so they are starting at the same time. earlier inputs? do you mean because of input lag? that is a thing. having to press a bit early so it registers on time
I used Gambatte r571 and xaephod used VBA which is known to run faster.
by the looks its probably your emulator. I made a comparison.
going frame by frame, i think yours might be clearing blocks faster.
See yours here has 17 cleared, and we have 9 and 11 each. video frame rates alone wont make that big of a difference in such a small time. 
I_o_l and mine and xaephods differences are probably just frame rate things like posted above. I_o_l and Xaephod actually have same frame count but xaephod beats him due to frame rate. What do you think of this stuff? I'd like to hear some thoughts on my data. If i am incorrect, hey stuff happens but I'd like to find out whats goin on
I got curious and came back to these boards. Decided to download source videos from youtube and check frame count and timings. Here's what I found, video frame counts and frame rates taken using VirtualDub:
i_o_l: 63 frames@ 29.97fps = 2.102s Xaephod: 63 frames@ 30.00fps = 2.100s DotSFC (me): 128 frames@60.00fps = 2.133s
technically Xaephods run beats i_o_l's run but thats just due to frame rates. They are tied.
I did time the WR run. 47 frames @ 29.97fps = 1.568s.
But that seems impossible. How can a run suddenly be half a second faster than the rest? just gonna say that I would like to blame that on the emulator, not the runner. It looks to be some inaccurate flash or HTML based emulator. I may look further into what emulator its based off of because that isnt entirely fair to just stomp on the rest of us because of a emulation problem.
Any thoughts on all of this?
