Hello,
High exp rates makes new players get up to maximum level within a moment without learning game mechanics during regular gameplay. It ends that they are on maximum level quickly (which is not even rewarding) and have no idea what to do, what to run or how to play tactics or use special class skills. They are lost and mostly ending their journey. We analyses many cases.
We are starting large process of making game more understandable for new players, which will cover many aspects. New introduction, easier start, more information, better guiding through game.
There is already exp modifier that allows you to decrease gained exp to x0-9, but it is not default yet and still brings same issue since availability of high exp rate without effort makes it too often chosen without thinking about long term consequences.
As well, with upcoming patch containing this change, leveling to 104 and 105 is easier as of fixed house bonuses. And now you can still fill many exp orbs before patch.
Please don't forget that there is dozens of exp potions of buffs that were basically useless until now as of total caps. After change, with their usage you will be able to reach same speed.
Greetings