Last night i became lucid in a dream after doing a reality check. After i was aware i was dreaming i attempted to transform my body into a monster. I could get my fingernails to become claw-like in appearance but i could not get my body to become a monster because it took too long to transform. I lost my lucidity while i was trying to transform.

I tried this once in a dream before but the same thing happened (with the fingernails changing and losing lucidity afterwards). Is there anyway i could transform quicker without losing lucidity?