Not really sure what you're asking - if you're complaining or if you're pleasantly surprised. Normally, processing of JUST the sponsor's part of the application through the Case Processing Center in Mississauga takes up to 30 days. So 16 days is pretty fast. But that's just the beginning. If the sponsor is found eligible, then the application goes to the overseas visa office for assessment of the applicant- and that will take months. So get ready to wait.