Move the site to different hosting server to increase the website speed
Optimise images on the site - a lot have not been optimised for web so it is increasing the size and load time of website
Review caching policy
Check and see if there is any JS no longer being used and can be removed
Fix any 404 or 500 errors
154 freelancers are bidding on average $1590 for this job
Hi There! I'm the Certified Web developer. with 6 years of experience I assure you the highest quality of the work. Please discuss details in message. thank you!