is there a way for \prime not get smaller when used with sub/superscripts? Or realigned somehow? Without font changes would be nice.

\starttext

\startformula
\frac13T\prime_{rs}T\prime_{st}T\prime_{tr}
\stopformula

\startformula
\frac13T_{rs}\prime T_{st}\prime T_{tr}\prime
\stopformula

\stoptext