Yellow leaves on lemon tree

My lemon tree has looked like this all summer. I’ve only had it a little over a year so no lemons yet but this doesn’t look healthy. Gets plenty of sunlight and it’s not overwatered. Is this okay?

My lemon tree has looked like this all summer. I’ve only had it a little over a year so no lemons yet but this doesn’t look healthy. Gets plenty of sunlight and it’s not overwatered. Is this okay?