How long does the quickbook sync take?

How long does the quickbook sync take?

We have tried syncing three of the modules we need (contacts, invoices, products) at the same time and it takes FOREVER and then times out. Then we tried doing them one by one. We imported all three into Zoho separately.

We had one invoice we needed to sync Zogo > Quickbooks to test it, did so by only syncing the invoice module but it took about ten minutes. This seemed excessive for one invoice.  

Now we need to update pricing for some of our products. We made changes in Quickbooks and are syncing only the products module. We have about 460 products in Quickbooks/Zoho. We ran the web connect and its been going OVERNIGHT and is currently at 'request no. 60,000' and stuck at 32% Application Progress (not total progress) not to mention it seems like it only updated products up to the letter 'H'.

Can anybody help me with this?