String parsing - Perl5's forte - is still dog slow with Perl6/Raku and year after year we hear that will change in the future. Don't hold your breath.

Raku's big strengths lie, IMO, in the command line scripting capabilities (the MAIN function), parsing with grammars and powerful new regex syntax, and as a glue language. It's relatively easy to bind to external libraries and work with them.

Look at how easily raku binds to a python charting module in this article: https://www.perl.com/article/plotting-with-perl-6/

Slow is in the eye of the beholder. Sure, for some applications, Perl blows Raku out of the water. Add in some Moose, and the situation is not so different. YMMV.

On my 4-core i7 Macbook Pro parsing a 20Mb log file with a regex takes 9.4 times longer with Raku than Perl5. That's unacceptable. Adding Moose to Perl5 reduces the differential to 7.1 which is still huge.

Do you have a gist of your code and a representative sample of the log file you're parsing?

It's a one-liner:

    for 'logs1.txt'.IO.lines -> $_ { .say if $_ ~~ /<<\w ** 15>>/; }