Going by API is as useful as using median house price. All API does is tell you the average of all the kids. If you divide it up by race, you’ see the API score for white students in TPHS is 851, while in MMHS it’s 815. The major difference is the Asian students. In TPHS, their API score is 923 vs 835 for MMHS. Since MMHS have students who are also just learning English, you can assume that might be part of the reason why there’s such a disparity.