WordPress Website Development for website improvement

I built my website a couple years ago and it needs some tweaking. I want someone that can give me some recommendations of what I can do to get my website to load faster and any other tips that might h I built my website a couple years ago and it needs some tweaking. I want someone that can give me some recommendations of what I can do to get my website to load faster and any other tips that might help SEO. It might also have some old plugins that need to be deleted not to mention some current plugins that arent exactly doing...