The retiming system also seems to be fundamentally flawed. As for instance, runs of mine are always being made slower by a more significant margin than what feels like everyone else's runs are.

There already is an in-game timer and I believe that it generally is accurate. So why are we retiming runs? There will always be inconsistencies due to video quality and you have no control over this. Retiming runs just provides confusion to new runners and can overshadow potential wrs.