Just my 2 cents, from looking at your routine I would go back go 4 bottles a day thus reducing the df as they are usually dropped by this age. If you can, can you add extra formula in at her meals too? I add a lot of formula into her breakfast cereal and some at dinner too. I would tweak the routine slightly to elminate the df like this.
7am bottle (200mls)
8am Brekkie (weetbix and fruit)
11am or 11:30 bottle (200mls) if she doesn't take it all offer the rest at her meal
12 or 12:30 lunch (protein and veggies)+rest of formula if doesn't take it
1:30 snack
3:30 bottle(200mls)
4:45 dinner
6.30 bottle (240mls)
bed
It might work for you, I hope I have helped a little

Sarah