He's still fast, but a lot slower than he used to be. If you watch some of his older training footage his hand speed was just insane, now he's just another fast guy at the weight but not exceptionally so. Good to see him stay in shape after retiring, so many boxers just balloon up once they quit but then Manny was always a gym rat, he'll probably never stop training.
Pacquaio is just like Floyd and Tyson. All 3 of them retained their speed despite aging. Obviously not all of it, but it’s not degraded anywhere near as badly as what the old timers like Ali, Frazier and Foreman’s did when they were in their 40s and 50s.
That says it for me. Years back, Pac was like a literal, indefatigable machine gun on the heavy bag, speed bag, pads...you name it. He’s still a phenom for his age in absolute terms. But measured against his own phenomenal self at peak, you can see that he has slowed down somewhat. Best of health to the Pac Man.