WP website too slow to load

Hello my WP website is too slow to load specially on chrome. I get the following message GTmetrix tried to analyze the page, but it took longer than 2 minutes to finish loading. Please login to try testing from a test location closer to your server. Please I need assistance from proven web developer to improve the loading speed of the website under 10 sec on GTmetrix. i cannot imagine for this to be too expensive a project. need foxed cost budget proposal