I want to vertically center the content of all pages. I followed the approach in https://tex.stackexchange.com/a/155734/91605, but alignment becomes increasingly skewed from actual center when as the body font size grows. This happens no matter whether there is a single line of text or many. How can I fix this?
MWE:
\setuppagenumbering[location=]
\setupbodyfont[100pt]
\showframe
\starttext
\dontleavehmode\vfill
text
\vfill
\stoptext

