Hi,
Here is my suggestion:
– Enable cache in your site, it helps much
– enable the css / js optimization feature of T3. That will reduce the number of css / js files. Now you have so many css file to load. Please manually check css file and remove any unused css, it will help much.
– Using our Amazon S3 component allows using CDN (cloudfront) (or you can try other component like this) and also has option to update cache folder with cron job.. which can be set to lower limit to have regular update of cache on cloud. Running without cache on is bound to make the site slower. However, the main reason for slow site would still be the number of items it has to fetch (css , js, images, external scripts / social stuff).
– You could check also your bandwidth again, in my end the load speed is not so bad. This is so important thing.
– Reconsider the usage of the “important” plugins and modules, sometimes switching them off is better
Regards.