Test whether using a link shortener makes a difference in the time it takes to read and connect to content with a QR code.
Without link shortener:
With link shortener:
In this case I found the shortened code link was about 1.5 seconds faster than the unshortened link. Customers have come to expect nearly instant response. Connecting 1.5 seconds faster makes it less likely your customer will bail before they see the whiz bang content you’ve got waiting for them!