I think is very promising the idea of visualization for mobile devices , im developing one too.
Im very exited with all these, I tested on a galaxy tab A 9.7 That have a Snapdragon 410 and a Sony xperia m4 with a Snapdragon 615 adreno 405 and on both works great.
These two devices are mid range, so i think the experience Will be better on lets say galaxy s7 or iPhone 7.
About your problem maybe is related with the compression, I always use etc2, even if my devices support a better one it have a better compatibility.