It took 4 days for passport to be ready to be picked.
Visa is the Immigrant visa stamped on your passport. That will allow your entry to Canada.
COPR is the confirmation of the PR status. This is an A4 size paper mentioning the details of the PA and the sponsor. There are two copies of the COPR, one with photo and one without. The one with photo will be submitted when you land and the other one will be signed, stamped and dated and returned. You must keep this copy safe. You’ll need it for applying for SIN, health insurance, driver’s license, etc. till your PR card arrives. After the PR card arrives, you will need the COPR in case you lose the card and have to apply again or for applying for citizenship later.