Should have persisted beyond Ainulindale. Or even Valaquenta . Which are both written in somewhat more archaic language than the rest of the book. I got bored too with these bits , but after that it's just amazing . Then when you re-read it, you enjoy those bits too
It happened again recently . I was reading Hyperion by Dan Simmons and found the initial chapters confusing and too full of science fiction mumbo jumbo. But once you get past that , I found it to be an amazing read .
What I'm saying is , some books are often confusing in the first few chapters . One should persist till the end though , and is often rewarded with a gem of a story for said effort.