Database cleaning wizard

Question

Hi....

I am working on database cleaning wizard which contains 20 table to clean

all tables contains a unique id named InvoiceNo,, now i have created a storedprocedure in which i have passed all 20 query and a parameter of invoiceno
but when run run (UI) as I start cleaning process it takes too much time..
while tables contains thousands records.

so how it is possible to increase speed

..
Please help