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For the sample now added to your question:

perl -MText::CSV -ne '
  if (/^(\S+)\s+(real)\s+(\S+)\s+(user)\s+(\S+)\s+(sys)/) {
    push @header, $2,$4,$6;
    push @values, $1,$3,$5;
  } elsif (/^\s*(\d+)\s+(.*)/) {
    push @header, $2;
    push @values, $1;
  }
  END {
    $csv = Text::CSV->new;
    $csv->say(*STDOUT, \@header);
    $csv->say(*STDOUT, \@values);
  }'

Which gives:

real,user,sys,"maximum resident set size","average shared memory size","average unshared data size","average unshared stack size","page reclaims","page faults",swaps,"block input operations","block output operations","messages sent","messages received","signals received","voluntary context switches","involuntary context switches","instructions retired","cycles elapsed","peak memory footprint"
57.03,212.49,16.24,88588288,0,0,0,5531,2,0,0,0,0,0,0,1,3337714,2273379580064,693450611012,87999936

format like that of the GNU standalone time utility (not the time builtin of the GNU shell) with -v may just be a matter of piping to:

format like that of time -v with the GNU standalone utility (not the time builtin of the GNU shell) may just be a matter of piping to:

If it's more like the format seen on the macos time(1) man page.

If it's more like the format seen on the macos time(1) man page for /usr/bin/time -l -h -p sleep 5: