Updating is very slow

Updating is very slow

I have put a lot of work into a member database, and I'm not happy with the speed when updating records.
 
The form is not that complex and the only script is "on succes" which syncronizes the data in the primary DB;


input.Hjemmetelefon = thisapp.FormatAsPhoneNo(input.Hjemmetelefon);
input.For_ldremobil = thisapp.FormatAsPhoneNo(input.For_ldremobil);
input.Mobil = thisapp.FormatAsPhoneNo(input.Mobil);
MedlDB  =  Medlemmer  [Medlemsnr == input.Medlemsnr];
MedlDB.Adresse = input.Adresse;
MedlDB.Postnr = input.Postnr;
MedlDB.By = input.By;
MedlDB.Hjemmetelefon = input.Hjemmetelefon;
MedlDB.Foraeldremobil = input.For_ldremobil;
MedlDB.Mobil = input.Mobil;
MedlDB.E_mail = input.Email;
MedlDB.Far = input.Far;
MedlDB.Mor = input.Mor;


Is there anyway debugging the application finding out where to optimize the code?

 
Plz hlp
/Henry