Low tension strings move through a wider arc than high tension strings when the same force is applied to each. But, we can apply more force to the higher tension set and get just as much amplitude. And, when we apply more force to the higher tension strings, the decay from maximum is quicker, giving the impression of astronger attack.
And that’s just skimming the surface of the different possibilities and variables.
I like higher tension flats, 1954s are my favorites, but have learned to adapt to TI flats. A lot of players think those are very loose and floppy, but I don’t think they are looser than most 45-105 roundwound sets. I play them with a medium action, not the lowest possible action, and I can get more punch when needed by muting a little and digging in a bit more.
Nothing wil ever sound as good to me as a broken in set of LaBella Originals, probably, but I can compensate.