You want low-level character optimization for combat?

Race: Wemic
Class: Fighter

Specialize in any weapon, preferrably a one-handed weapon (long sword comes to mind, maybe a short sword). Take Two-Weapon Style and Ambidexterity. 9/2 for attacks at 1st level. How you say?

In round one, you get your primary weapon (1), your off-hand weapon (2), and both front claws (remember you're a wemic here, who can use their front claws in combat, so 3 and 4). That's 4 attacks in the first round. Now the next round, you get your primary weapon (1), your second shot with your primary weapon for specialization (2), your off-hand (3), and both claws (4 and 5).

9/2 at 1st level.