Originium Ore yield limit Valley 4

My current ore yield limit is 480/min but the theoretical usage is 510/min since I started mass producing HC Valley Batteries, and by mass producing I mean a yield of 17/min which isn’t exactly high. I checked if I have every Originium ore vein mounted with automatic drillers, which is the case, but I can’t help thinking I’m missing something :/

Does anyone have a higher Originium Ore yield for Valley 4 or do I have to tone down the battery production?