The is a third-party modded utility client designed exclusively for Minecraft: Pocket Edition (also known as Bedrock Engine for mobile). Unlike the vanilla version of MCPE, which is limited by Mojang's standard rendering and input lag, the "V3" iteration of the DLB client is built from the ground up for competitive play and seamless user experience.
Make sure you are downloading the authentic version of DLB Client V3 from verified community sources to avoid malware and ensure you have the latest performance patches! dlb client v3 mcpe exclusive