Just to offer some support to supernova777. I have a use case where I would rather trade performance for functionality. I deploy SMF using a Bitnami image on Google Cloud to a private group of fixed limited numbers. SMF gives me just what I want, although I would like to increase the View the most recent posts on the forum limit from 100.
So from my perspective a configurable limit (with a recommended value of 100) would be better than the current fixed value, I could even set it lower if I wanted to restrict the performance impact.
I accept that this is a minority requirement and so perhaps not appropriate as a future enhance, especially as supernova777 has described a code change that is not too onerous for the average user.