Extreme Lag when playing in snow background?

Vir2015

Been playing Act 5 since the update and have been experiencing extreme lag whenever the fight has a snow or hail fall background. Fights with other backgrounds are fine - has already happened more than 5 times - I've reinstalled the game - but the issue is still there. Anyone else facing this?

DarkestDestroyer

There was another post about this happening too, but I have been on iPhone 5 all night doing master quests and not had any issues at all in the snow.

All working fine for me so hoping if a fix comes mine isn't them effected.