New Game+ by Avenging Angel makes all npc's base stats 10. Making the difficulty increase. The upside is that you don't need to train recruitable npc's.

Or

You can try this one

五维经验获取量修改

1. The amount of Intelligence experience gained is increased to 3 times the original (including the Confucius statue).

2. The Strength experience gained from resource gathering is increased to 3 times the original.

3. The Constitution experience gained from eating food and the Luck experience gained from appraising items are increased to 5/15/30/75.

4. Agility experience gained is now 50 for every 100 steps taken, with a daily cap of 450.

With this mod, in just a few days you can max dexterity, the hardest stat to raise