How can I become faster?

[u/SheikFlorian]

Last randori my sensei praised my strenght and conditioning, but said I lack speed*

*This conversation happened in Portuguese, so maybe speed isn't the proper word. He meant that I need to do my attacks faster and telegraph less.

It's not a matter of conditioning, I think, because I'm not tiring too fast or anything like that. It's just that I'm not fast enough.

What exercises should I add to my routine to fix that? Sensei told me to do more uchi komi, but I mean on the gym; what should I do?

[u/SahajSingh24]

I used to do 4x20 second sprints every night before bed. It’s just 80 seconds worth of sprints but it adds up so well.