Heck, lets go all out!
If everything stays like it did in Early Access THIS is an attack turn with Thief Rogue 4 / Monk 8 with a simple +1 Shortsword,18 DEX and Haste potion.
1d6+5+2d6 1st Attack + Sneak Attack
1d6+5 Extra Attack
1d6+5 Haste Attack
2d4+8 Bonus Action Flurry of Blows
2d4+8 Bonus Action Flurry of Blows
If everything hits thats around 58-59 damage in a single turn, and you can do this 3 turns in a row.
Perfectly balanced, as all things should be - right?