Is the slur too close to the top note?

[Knute Snortum]

Hi all,

I have what I guess is a request for comment on how close this slur is
to the topmost note.  If you engrave this input file...

%%%
\version "2.23"
\language "english"

\relative {
  \clef bass
  \key c \minor
  c,16( g' c d ef g c d  ef d c g ef d c g) |
}
%%%

...you get a slur that to my eye is much too close to the "ef" in the
third beat (see attached). What do others think?  Is this just a case
of "LilyPond sometimes doesn't render perfect slurs" or is there an
algorithm that can be tweaked?

--
Knute Snortum

slur-too-close.png
Description: PNG image