Try to link the tickets, or not check any bags.

If you haven't checked bags, or your bags are checked through to MSP: you and your companion will be able to use the ITCPF facility (follow the overhead US flags on the signs) which will deposit you at a quick personal screening CATSA Plus line (used only by Intl ->US connecting passengers), followed by a room full of PIK kiosks (and the screen upon which you identify your bag to satisfy US customs) and then an interview at one of two dedicated US CBP booths. You'll be through to the transborder area in under 30 minutes, without visiting the main Canada immigration hall. Your bags will soon be at their pier underneath you, being loaded into the DL container.

If bags are checked only as far as YVR, I still believe you'll have enough time, although it might be tight. The PVG flight arrives during the mid-day Asia rush, so there may well be a delay in immigration processing. Suggest you go ahead using GE and claim all bags (yours and companion's), clear customs and head upstairs to check them in at the DL counter. 2 hours will be sufficient. If delayed, your travel companion can ease his or her connection by simply passing the baggage carousel and walking straight up to transborder security, which at that time of day, should be at a low-volume stage.
Your companion will be able to find you face-down at the Absolute Spa in the midst of a 20-min massage.