This is a special structure used to say why something is or should be ‘more…’
The robbery was all the more distressing because the robbers broke up a lot of our furniture.
Sunday mornings were all the more enjoyable because Susie used to come around to breakfast.
That murder attempt made it all the more important to seek police protection.
He doesn’t seem to be any the better for his experience.
He explained everything carefully, but I was none the wiser.
Note that this structure is only used to express abstract ideas.
Three / four times + comparative
The structure three times + comparative can be used instead of three times as much.
I can run three times faster than you. OR I can run three times as fast as you.
The task was ten times more difficult than I expected.
I can walk four times further than you.
Note that twice and half are not possible in this structure.
She is twice as pretty as her sister. (NOT She is twice prettier than her sister.)
Pronouns after than
In an informal style, object pronouns are used after than. In a formal style, subject pronouns are used usually with verbs.
She is older than me. (Informal)
She is older than I am. (Formal)