Version 11505 includes a backported texture decoder that is 15-20% faster than the mainline version on Adreno GPUs (Qualcomm chips). This reduces the "heat throttle" effect, allowing you to play for longer sessions before your phone turns into a hand warmer.
The short answer is . While development on MMJR has slowed (as developers moved to "MMJR2" and "Dolphin 5.0-19000+"), the specific 11505 build remains relevant for two reasons: dolphin mmjr 11505 portable