Performance on virtual Infoprovider / 0FIGL_V10

Hi Experts,

we have built a cash flow query based on 0FIGL_V10. The performance is quite miserable as it is a virtual infoprovider. Are there any suggestions to tweak the performance ? Does an aggregate on 0FIGL_C10 (the basis of of V10) help at all ?

Thanks for you inputs !

Regards,

Max