Website technical quality is important. Not in any way as important as great content, but why loose income caused by technical issues that easily and inexpensively can be solved within a few hours. Before doing anything, you need to know the status. Is there anything that could be improved? What to perform the improvment? How to do this? What would it cost? How long time would it take? Should I do it myself or hire someone? Just Googling it produces many answers.
How strong is your website?
https://website.grader.com/#/