We Need Shopify Expert

General information for the website: We sell Video Wedding Invites Description of requirements/features: We have a website on shopify platform (www.letsannounce.com), but there are 2 major issue that we need to solve, One we need to improve the loading speed of the website drastically as its little slow, second the website is not opening properly on mobile, Plz go through the website, and let us know in brief how can you fix the issue, for now we need two different quote from the experts, one is just for the Loading speed issue and another quote is including both the issues, Kindly Apply if only you have worked for Shopify website, Also Kindly submit your portfolio or links of previous work , Let us know if you need any help in understanding the problem, Thanks Specific technologies required: Shopify Expert Extra notes: