bench: Re-run with more time + JSON::Tiny & XMLWriter benchmarks

FU/XMLWriter.pm

@@ -126,6 +126,13 @@ your own code. For example, if you have a function to convert some data into a
 nicely formatted table, you could name it C<info_table_()> or something. It's
 like having composable custom HTML elements, but in the backend!
 
+Generating HTML is something that website backends tend to do a I<lot>, but
+calling tons of Perl functions is generally not very fast. For that reason,
+this is an XS module implemented in C. It compares favorably against a few
+other XML writing modules on CPAN that I tried, but whether this approach is
+faster than typical templating solutions... I've no idea. Check out
+L<FU::Benchmarks> for some benchmarks.
+
 =head2 Top-level functions
 
 These functions all return a byte string with (UTF-8) encoded XML.