Your internet upload speed is essential for a reliable video connection. We recommend 1 Mbps for each megapixel device you have that is uploading to the Internet. So, four cameras with 1MP quality video and a 2 MP video doorbell would need a minimum of 6 Mbps of upload speed dedicated to a good experience when watching the remote video.
Keep in mind, we said dedicated, not shared. You will need to have an additional 6 Mbps reserved just for video transmission.