I feel your pain with the Fluval lighting. Had (2) of the 24" 2.0 models on my tank for awhile. They were, in my opinion, better than the Satellite Plus Pro lights. Very much hated the WiFi connection.
I now have a 3.0 nano light on a 5g tank - much better interface. Was not sure how much of your light was running at 100% but figured at least some of it is as that is a pretty big tank.
I'm running all spectrums at 100% except "Warm White" which is at 12%. I don't particularly like the "Warm White" as it is too yellow for my preferences.
My algae is manageable with this set up and I think I can overcome it and still maintain this intensity.