Every mob has value. 100 HP mob = 100 pek. Therefore, the bet of the weapon mainly affects the final result.
When you find a suitable weapon for this mob, you can improve your end result with a better one (according to high statistics) or replace it with a lower weapon but attach to it AMP.
It is not the DPS that matters, but the cost of the weapons. With faster weapons, you will increase the number of kills per hour, but you would also have more losses at a lower rate. Let's not forget that there is a whip that does not have many attacks per minute!
The dynamics of the game affects not only our loss of TT, but also the composition of the loot during its various stages. Ie the dynamics are determined by mob return, and the choice of bet depends on us. Ie even a change in equivalent weapons, but at different attacks per min(DPS), you may have different values during different stages of the mobs.
Short and simple. If you kill a 1k mob with two weapons that have the same statistics, but different cost... for example 0.95 and 1 ped... in the end the difference of 1k kills will be 50 ped, and the difference in the loot will be those 50 ped.
As we focus on TT start and TT end calculations, they become unnecessarily complex. Also no one in the forum adds a dynamic rate variable to their calculations.
The balance of the weapon in relation to the mob is the most important factor, not just to attach additional elements without their need... just because they have a higher efficiency..
And in this case the DPP is reduced, which affects the composition of the loot... but from the composition of the loot comes the profit in the game.
The loot is also in groups. When you take loot from group B (let say common), it will be for the account of another item in this group. The irony here is that the MU is determined by AFK players who are not aware of the acquisition of the loot and therefore the MU of the more difficult to access items is in some cases lower or equal to the more easily accessible.
Therefore, it is not clear whether in your case you focused on more easily accessible loot that you accessed with a lower DPP or is a factor in all of the above.