Hi, I'd like to propose two things, the first being the introduction of a cap to attributes and abilities. This cap would steadily increase as the world progresses. Competitive players would have to grind daily in order to be at the top without having their progress coming to a complete halt, while giving more casual players time to catch up.
The second would be limiting the amount of LP/FEP one can get in a span of time. In order not to punish players that aren't able to play every single day or won't be able to login for a long time, the LP/FEP that wasn't gained would accumulate over time to give said players a chance to catch up.