Students in the United States performed above the OECD average in reading (505 score points) and science (502), and below the OECD average in mathematics (478).
Their scores were similar to those of students in Australia, Germany, New Zealand, Sweden and the United Kingdom in at least two of these three subjects. The trend lines of United States’ mean performance in reading since 2000, mathematics since 2003 and science since 2006 are stable, with no significant improvement or decline. Nevertheless, in reading, the share of 15-year-old students who scored at Level 5 or 6 (top performers)increased by almost 4 percentage points – a statistically significant increase – between 2009 and 2018, to 13.5%.
•As in many countries, socio-economically advantaged students in the United States outperformed disadvantaged students in reading, mathematics and science. In reading, the performance gap between socio-economically advantaged and disadvantaged students was 99 score points (OECD average: 89 score points). Some 27% of advantaged students in the United States, but only 4% of disadvantaged students (OECD averages: 17% and 3%, respectively), were top performers in reading, meaning that they attained one of the two highest proficiency levels. However, 10% of disadvantaged students in the United States were able to score amongst the top quarter of students in their country in reading.
https://www.oecd.org/pisa/publicatio...018_CN_USA.pdf
Also, teachers in the US don't actually suck by any objective measure.