Fairly self-explanatory, what the suggestion entails is that in the server-side configuration for the mod there would be a toggle that, when enabled, would cause the momentum of any entity traveling through a portal to be conservedl, with the movement vector being rotated accordingly when the axes of the 'entrance' and 'exit' portal differ.

"In layman's terms: speedy thing goes in, speedy thing comes out."

Ignore me, I didn't realize that this was already a feature and that momentum was being cancelled from scraping my feet on blocks as I exited portals. Apologies for the inconvenience.