slower.diff

diff --git a/lib/Mojo/Util.pm b/lib/Mojo/Util.pm
index 8983d3a..5cf74bd 100644
--- a/lib/Mojo/Util.pm
+++ b/lib/Mojo/Util.pm
@@ -235,8 +235,8 @@ sub slurp {
   my $path = shift;
 
   open my $file, '<', $path or croak qq{Can't open file "$path": $!};
-  my $ret = my $content = '';
-  while ($ret = $file->sysread(my $buffer, 131072, 0)) { $content .= $buffer }
+  my ($ret, $content, $size) = ('', '', -s $file || 131072);
+  while ($ret = $file->sysread(my $buffer, $size, 0)) { $content .= $buffer }
   croak qq{Can't read from file "$path": $!} unless defined $ret;