He's just having 3 different resistance modules.
He has less heat and hitpoints than you. This explains that.
I thought that but then i looked at the modules :/ At his single resistant modules go from 7 and then to 10, so not possible.
The only possible way for this is using a multi resistant kit 1 (3 to all) and a multi resistant module 2 (5 to all). Check the replay and see if he starts off with 5 and there's your answer. If not then it's a bug.
Which is exactly what the singular said *facepalm*, sorry
Check to see if he started the game with 5 resistance on each.