Well, to be fair my Tiger 1 is level 36 (only relationship level 2 though, I got 5*s since then I've prioritized my precious candies for) but she's got 8592 durability and 133 dps

If you want more dps, it'll have to come from the emblems which means less durability emblems. My Tiger 1 has two durability emblems and 1 dps emblem (Hope 3, Luck 3, Evasion 4). All 3 emblems have Crit Mult. and the Luck has extra Crit Chance on top of the base amount, so she doesn't attack fast but has 27.23% crit chance with 155.73% multiplier. Ultimately, if you want more of certain stats on a tank, you use the emblems