There’s ample time, you just need to not overthink the questions. Which I’ll admit might be a challenge since a lot of the questions appear to not be written very well or by native English speakers =/.

Also, I think CISSP has moved to a new model where if you are scoring questions correctly as you go through they will just end the exam and give you a passing grade before you’ve even reached the end of the question bank. I took the exam before they moved to this model though so I can’t really confirm. Good luck!