New pump motor keeps overheating

Just had our pool opened and the old pump motor was shot. Ordered a new one and had my pool guy install it. It runs for a while (maybe 30-60 minutes) them overheated and shuts off.

Paired with a DE filter. Motor is from Amazon and should be a 1-to;1 replacement. When it's running water is flowing but pressure is low. Last summer I was seeing it sit around 15 psi most of the time and right now it's sitting at 4-5 psi.

Edit: [images](https://imgur.com/a/EBfvHWT)