"less performed" is correct and usable in written English.
You can use it when speaking about something that may occur multiple times, but is done to a lesser degree than what is expected or typical. For example, "The play was less performed in the second half of the year."
In other words, they are less performed than spoken?
Autopsies are more or less performed the same way today as they were when Rudolph Virchow, a German physician, standardized the process in the 19th century.
He did not hang up even during a performance by Macy Gray that featured a battery of acrobatically inclined drag queens, who wandered the audience and more or less performed leg lifts above Mr. Combs's head.
Levante's position is even more impressive when one considers that Real Madrid and Barcelona have, more or less, performed up to their lofty expectations.
Nowadays, tracheal intubation is less performed in the ICU because of the increasing use of non-invasive ventilation and high-flow nasal-oxygen therapy [1 4].
Results of the receiver operating characteristics (ROC) analysis indicated that the RMI score with a cut-off 136 or less performed only slightly better than chance in delineating probable malingerers from valid responders in this setting.
This is not the case for less performing children.
Also, during the bull market period, Islamic index is less performing against its conventional counterparts.
This situation may lead to the selection of "non-invasive" but less performing building and plant elements.
Such design solutions would in fact allow the exploitation of less performing fluids in terms of cooling capability.
Compared to the thick client, the thin client typically requires less performing user devices equipped with lower amounts of memory.
