Lahti was ordered to adapt the Maxim so that it could be fed with more modern metallic ammunition belts as opposed to the original cloth belts. The resulting weapon was able to fire at a rate of 850 rounds/min, whereas the Russian M1910 and earlier Finnish M09-21 were only capable of 600 rounds/min.
The text describes how Lahti's modification of the Maxim increased its firing rate significantly, surpassing that of other comparable weapons from Russia and Finland.