Hello!! I love this mod so much, but I find the JourneyMap's design to be difficult & also demanding for my hardware.
There is another popular map mod that I adore, the design is simple & smooth, & it works like a charm. I would really like to see the MapFrontiers mod work with Xaero's Map. I understand it is a lot to task, though like me, I am sure many other fans of Xaero's map would appreciate it as well, so you would be expanding your audience as well. 😇

At the moment Xaero's Map doesn't have an API that allows drawing polygons so I can't implement it.

Regarding the performance of JourneyMap, there are several options that can be edited to better adapt it to your hardware and any related problems you can report on discord.

Disclaimer: I'm a JourneyMap programmer too.

Okay, thank you!
I will try tweaking the Journey Map further. 🙂