Let’s be honest, at this point they’re essentially the same damn gun.
I think honestly a good route we could try, is having the Timik stay where it is, maybe change the firing interval to 110 exactly.
Then change the M4 to have a faster RoF with less damage. I was thinking something like 80 ms firing interval and 12 damage.
From there we could change things like Range, Reload time, clip size, etc. I would think the M4 should have less range and less bloom, while the Timik has more bloom but more range as well, so the M4 is more spray happy, while the Timik is more of a tapfire weapon.
From there you can buff the accuracy as needed till both guns are fairly consistent just with differing values for damage.