Lumens/amps:

https://public.tableau.com/shared/48WWBYTXR?:display_count=yes

From your lux it seems to be catching up slowly. Maybe it wont be as drastic but still the harder it's driven the closer they get in lux

Nichia Samsung
8810 5690 0.645857
5920 3720 0.628378
2070 1271 0.61401
458 288 0.628821
15.08 17.76 1.177719