"lowest performance" is a perfectly correct and usable part of a sentence in written English.
For example, "Of all the students, Sarah had the lowest performance on the exam."
In this context, students showed lowest performance in PUC and PS, whereas they performed better in representing the problem and communicating the solution.
In 2005, with the foster care population falling, the city placed the nine private foster care agencies with the lowest performance records on notice that they might be closed.
Coolant modulation yields the lowest performance penalty.
Tanjung Pelepas has the lowest performance for most criteria.
Last year Oakwood was given the lowest performance rating possible by the Ministry of Justice.
The clusters 1 & 2 model also shows the lowest performance among the three models.
The beta and the chi-square WSNs have the lowest performance.
The MF scheme always achieves the lowest performance since it does not suppress any interference.
Furthermore, LAH-L has the lowest performance for the same reason.
P1 has the highest performance, whereas the P3 aftersales services provider has the lowest performance.
