Except the slow progress everything should be fine.
It was great to finally see a system that didn't start too OP, those OP stories really get boring quick.
There's also a bit issues on his way of thinking but not so bad that it's unreadable.
One spoiler question.
Why don't he open those challenges in Cultivation world?? I mean he can just open one randomly in any cultivator sect. I bet they'll clean those monsters for him.
I wonder why they love writing such an idiot MC like this??
I take it back, calling him idiot is an understatement. I don't think he brought his brain when he transmigrated.
I've read up to half and I can't continue reading it. Honestly for novel MC is everything, if the MC is bad then everything will be bad. No matter how well written it is.
Common Idiot MC.
I wonder why every transmigrated MC have their IQ drop to the lowest point possible.
Selling enlightenment pill because he already got the system?? Wtf, can't he thought that with the enlightenment pill he could farm those exp faster because his comprehension is higher???
A good concept but the execution is a nope.
Too much repeated plot.
Honestly I don't know what kind of story you want to write, too many mixed up and unnecessary things.