I used to feed my micros and acans every 3 days. I'd use mini mysis. On small colonies or frags I'd feed each polyp. On some morphs it didn't help at all, other morphs did well.
This morph took off. 2 polyps turned to 20 in 4 months.
This morph didn't respond much at all. 2 polyps turned to 3 with a baby in 4 months.
This one was incredible. Maybe 2 polyps every week.
Purple haze, I think I started with 4 polyps, now its been about a year, I have about 30-40. I stopped feeding about 6 months ago, but when I was feeding this morph responded extremely well. I think I'll start feeding again.

I just go lazy.
If you can keep your tank very stable. Salinity, trace elements, temp, lighting schedule and so forth along with feeding say once a week. I think you'll have very positive results. Stablity is the key. I know people who don't feed at all and have more success then I do with feeding. I think your feeding schedule is fine.