OK. I'll look at it when I get time. If it's just adding /lrc to the end of the URL it shouldn't be too off the wall to attempt. It looks like there are only 380 songs on the entire site with timed lyrics at this point, though, so I don't know how effective it'll wind up being.
FYI, the plugin offers the ability for users to add their own custom providers via yml files. There's a template here
. The original LyricWiki config is here
. You may want to try downloading the original as a new yml in the plugin's "providers" folder. Name it something distinctive. Then in a text editor put something like Lyric Wiki Reloaded (Timed) at the top after name, add /lrc to the end of the url in the config section at the bottom and see if it works after you add it to your sources in MB. It may or it may not, but this will get you up and running if it does faster than waiting for me to find time will.
If it does let me know.