[rules-users] compiled package too big

Hello, I'm using drools 4.0.7. I have excel with about 4000 rows. After compiling it, the final Package is about 30 MB. And that's only one sheet, I have 3 of them. Total size is about 60MB. It's too big to hold it in memory, but too slow to read it from a file or database every time. Is there any chance to make the package smaller. It's always the same rule, just different values of attributes (that's why we use excel) and I think, after compilation there are many information redundant in the package (they are repeating over and over for every row / rule. Do you have any solution how to solve this. It's a tariffication algorithm, and the response must be quick. Executing is not a problem, just how to store this big package. Thank you Martin