Exactly, but i'don't think it will decreases dramatically the performance.

in the way i'm imagine the system, the clients (lots of ARM CPUs) will be only dedicated to be wild or tame kangaroo and to performs pure increments in the random walk.

If a distinguished point is found (i've to find a way to  be faster as possible) : example (AND mask beetween the first   of the 5 limbs (5*52bits)of X  and the desired DP,
 the client   send the X coordinate through a socket to the centralized server (computer with and hashtable checking continuously if a collision is found between received x coordinate and previously ones ).
I think it will  not slow significantly the computing because a client send a message to the server  only 1 on 2^DP times on average and a the stop of computing during the socket communication can be optimised to be fast.