Haven't fixed grammar...
Time passed in the blink of an eye and countless days have already gone by with Ray just passing his time in a chilled manner.
"He has finally gotten a lot stronger." Ray looked at the screen but simply shook his head, "but not enough."
Then he stood up from his throne and walked away disappointed.
Compared to his own growth speed, William's growth could be monstrous however it wasn't really static because all he could kill were normal animals and his level after a certain point took too long to increase by just killing this normal animal.
This wasn't a game world, just normal earth although it had ferocious beasts but they were all weakling compared to superhuman.
So William after reaching a certain point had to slaughter a thousand reaching upto millions to even level up for a single bit.
Making it extremely time consuming for him to gain more strength.