Hey there,
I understand that one of your Opencart sites is very slow (you've 5 sites on the same server). So I am delighted to inform you that I can work on this project and make it a success for you.
I have excellent work history, top ratings & feedback from my clients, so I assure you that you're in the right hands. If you have any questions or concerns, please let me know at earliest.
Best Regards,
Wasif