When choosing paths, functionality is more important. Muddy roads (the slowest) are rarely chosen intentionally, and on some XL templates, restarting (generating a new map) is allowed because of them. However, fast and medium roads are used. As an option, you could create such options (or a choice):
- without slow roads (i.e., only fast or medium roads will be generated);
- original;
- medium;
- fast.
+1
A perfectly reasonable suggestion.