show different field number and different title number in a report

I am Peter. i have a big trouble in making crystal report
i have to show different field number and different title number in a report. There are 19 set field.
i try to use subreport to do each set of field. It success.
However, my boss does not accept this program because the file size is very large.
Question 1. How can i do the same result and keep the small source.
Question 2. They request me to add a group to sort data. I can't do it because I use subreport to show data. In my main report it don't have query.

please help me!!!

for example
title 1 title2 title3 title4 title5
data1 data2 data3 data4 data5
data1 data2 data3 data4 data5
data1 data2 data3 data4 data5

title 1 title3 title7 title8
data1 data3 data7 data8
data1 data3 data7 data8

title 1 title2 title6 title9 title10
data1 data2 data6 data9 data10