question on Speed

Hello,

I am a little confused with MOBBLE. Our WordPress MU sites are in under HHVM and Redis environment, and the speed is very fast in PC mode, and the speed is very fast too in Mobile phone 3g data mode, but if Mobile phone is in WIFI network of same intranet of PC, the speed will very very slow.

We are using Kleo, a responsive theme(https://themeforest.net/item/kleo-pro-community-focused-multipurpose-buddypress-theme/6776630?s_rank=1)

I have activated Mobble in our subsites, Would you please let me know whether MOBBLE is helpful mobile mode speed?

Thanks so much.

Alex