Speed Optimize website/server backend

Bids above 100 usd will be ignored, and please dont private message. If prefer your present your suggestions or anything else in the bid info. Once winner is selected, we can discuss further. The website ([login to view URL])is currently loading slowly, and we need to do something about that: Freelancer needs to have experience with apache+myslq and must have done similer optimization jobs before and must know what WAMP is and know his way around a Windows Server 2012. And someone who can get the job done without me holding his hand. Drive by bids will be ignore, a personal message would help you in selection process. [login to view URL]!/TMsBH/[login to view URL] location selection : Sweden [login to view URL] Server is a Windows Server 2012 with WAMP installed, comes with 1: Apache 2.4.18 2: PHP7 3: MYSQL 5.7.11 4: PHPMyAdmin What needs to be done: 1: Improve load speeds significantly, we want as much as possible server side optimization and not having to install plugins(i prefer as little as possible plugin solutions). Comet cache plugin is allready installed and is doing a good job in many area. I have allready installed OPCACHE that comes with WAMP, maybe you can optimize it if i have done a bad job there. HTACCESS file is pretty optimized, but have a look maybe i have forgotten something 2: Optimize and make sure the MYSQL is using the server ressourses as much as possible, server is a quadcore skylake with 32gig ram and 1gbit dedicated connection. 3: If a spesific plugin is causing the majority of the speed issues, we can look into replacing it. But removing wocommerce plugins is not an option. 4: Solve these errors message in my php log: [16-Sep-2016 14:35:49 UTC] WordPress database error Duplicate column name 'image_sizes' for query ALTER TABLE wp_amz_assets ADD COLUMN `image_sizes` TEXT NULL AFTER `date_download`; made by include('C:\wamp\www\[login to view URL]\[login to view URL]'), require_once('C:\wamp\www\[login to view URL]\[login to view URL]'), require_once('C:\wamp\www\[login to view URL]\[login to view URL]'), do_action('plugins_loaded'), woozone_update_db, WooZone->update_db 5: Its importen that you keep your work clean and structured, i dont want to end up having to cleanup after the work is done. And i am open for suggestions