Reduce Required Mining Experience
Currently, playing through the game normally, mining is the slowest to level up by far. Even if you take the route of never using explosives to mine, you can beat the game while around skill 70. Fishing was already nerfed to essentially be given to you for free. Class abilities and crafting can be automated / farmed using other methods. Vitality and running naturally max out around the same time as you're finishing your last skills. But mining, towards the end, is just you running around hitting walls. There's no fun way to automate it, and just playing the game makes it very far off from capping.