if Bitsler:
 Dice Speed:
Ultra-mega dice speed. (tried today ~50-60%slower)

and Duckdice:
Dice Speed:
Here, they are the best! Ultra-mega-fast dice speed.
They capped me  Roll Eyes I played with four coins at the same time they capped me to two, still good.

what speed (try with seuntjie bot) have bitdice for you?(they are right now in maintenance you need to wait some hours)
didnt try with more than 1 coin because i have only doge there but they are way faster than Bitsler. about duckdice i cant say much didnt tried it.