Oh nice, what improvements were you thinking of? Are you finishing the run?
I hardly used anything new in this run at all, so it might be possible to get a few more guards boost earlier, and use boxes for boosts later.
Also i noticed if you reduce Bond's forward speed so it still stays above 1.08(normal speed before he accelerates, i think the limit is around 67 on the TAS input plugin), you can instantly accelerate back to 1.35 by holding the analog stick all the way forward again. This might be useful when throwing the modem since it might be possible to keep the full speed and still make a good throw(usually you run into the boxes a bit which is probably still faster but looks kinda sloppy). There are probably lots of other spots in the game where it could be used.
And the aiming with crosshair indeed decelerates bond back to 1.08 even with 2.4 control style meaning there should quite a bit of time to gain on my TAS since i used it ALOT early on. Might've lost 1:43 on surface perhaps? Bunker 1 might go lower, Silo, definately Frigate, Maybe but probably not Surface 2...