The niche for lasers is that they’re very accurate and have no recoil, so you can fire them extremely fast.
Comparing them “per shot” is kind of pointless, you need to be comparing per unit of time.
I whipped up a survivor with 15 str*, good-ish stats otherwise (10) the same skill levelss across the board (6), and the listed weapons, then attacked 3 zombies with each at short range.
Bow data:
53 moves/shot
crit/56
crit/48
106 moves to kill
good/26
crit/49
headshot/77
159 moves to kill
crit/45
crit/48
106 moves to kill
349 damage over 371 moves
0.938 DPM
Laser data:
20 moves/shot
crit/20
good/12
crit/20
good/10
headshot/31
100 moves to kill
crit/18
crit/21
good/14
crit/18
good/12
100 moves to kill
crit/22
good/18
good/13
headshot/30
good/19
100 moves to kill
278 damage over 300 moves
0.926 DPM
Outcome: the overall damage output per move from the laser pistol is about 1% lower than from the bow.
When using the bow, the zombies were able to take several steps toward me, with the laser I killed each of them before they had a chance to move. This is because the high firing rate of the laser gives the hits a chance to average out better, making it more reliable.
We don’t have a good way to depict this in game, but when you kill something with a laser, you’re firing a continuous beam that burns it to death, we just parcel out the damage in small chunks, because that lets you react faster.
Also it’s a laser, there’s no plasma involved.
*This advantages the bow from the start.