Answer :
he was really smart and good at his work but his mind wandered due to boredom. Voracious- 1 : having a huge appetite : ravenous 2 : excessively eager : insatiable <a voracious reader>
Allay- 1: to subdue or reduce in intensity or severity :
Allay- 1: to subdue or reduce in intensity or severity :
I think it's read a lot of books because the context suggests a large number of books but not necessarily his speed at reading books