Turn 1 you should have no troubles with tank healing using Cure 1 up until 3 stacks. Then at 3+ stacks, you can get your eye for an eye, virus running back to back. Your tank has cooldowns of his own too. You should be striving for a clean split (0 stacks). Your shroud usage should be around Max-1500 mana. Attune Caduceus' Animation hitting so you can cancel spells, or get the heal in just after damage comes in. DPS Can bait tailswipes to reduce incoming damage.

Turn 2, your tank swaps could be inelegant, your tanks could be taking too much avoidable damage. Players should not be getting hit by piercing lasers. How many stacks do tanks go up to? Generally it's better to get the tank to swap when his stacks fall off, unless a repelling cannons is soon, then it's best to take it straight after a repelling cannons. If it's just a stack-off swap, you need to be a bit more on the ball of who ADS is currently hitting.