Webserver with complex structure and foreach works very slow

Hi all I have tree layer BO

and each node layer between 2 to 100 elements

node layer one [10 to 100]elements

          subnodelayer1.1[1 to 10] elements

          subnodelayer1.2[1 to 50] elements

               subnodelayer1.2.1[1 to 10] elements.

I have one BO in foundation which holds the master data .

and two objects (one of it is transient) in CRM with the same structure.

Whenever I consume service, create transient BO or the final BO. It takes up to minute to create data ( each task about 20 sec).

Why this is so slow is this because development systems are not on HANA or I should expect similar behavior in productive ?

Up to me foreach with create in it works very slow.

Cheers Ognian