Current Pac or Lomachenko? @mark ant says Lomachenko is much faster. I think Grandpac's still has greater handspeed.
Prime Pac is faster. Pac right now is not. It's irrelevant anyway though, handspeed is overrated. There's a guy at the gym I used to work out in who was a killer on that speedball, get him in for a spar and it didn't matter, he didn't have the timing. If you're talking about timing, Pac is far and away better.
I went with Grand-Pac. I think he can probably get a full combination off quicker, and maybe even get a power shot from A to B quicker, but Loma is definitely quicker at capitalising on an opportunity. He's also a bit quicker when he's changing angles. No matter what side of the argument you're on, you'll agree this is close. The thing is, one is 20 years older and 20lb. heavier. Prime Pac makes Loma look slow.
Pacquiao is old and a welterweight now. Why don't you find somebody else to compare ? Crawford maybe ? Or perhaps if you think Pacquiao is so invincible, why not take Duran ? Your inferiority complex as Pacquiao fan and your persistence to single out one particular younger boxer who come from different generation and weight class really makes me sick. I, too, love Pacquiao, but I don't like to compare him with other greats of boxing.