You have assembled a great team, you have built a great product; so yes you should be able to do this yourself. Although since you are here it seems you have concerns about your current performance.
1. Perhaps hosting is costing too much?
2. Are slow page loads causing you to lose customers?
3. Or it is just taking your development team longer and longer to deliver the features, you want to get to market?
When creating something new, teams often get caught up with what is urgent and needs to be done now. If it had not been done, then your business would not have been able to move forward. This can mean that important things, like quality and performance, come and sneak up on us from behind. The most important thing for a business is to be out and making revenue. Which you have successfully achieved. The next two most important things are to grow and to increase profits.
Given our experience and the perspective, we are able to help you to increase your perfromance capability. The will allow you to get the biggest, immediate and ongoing, returns; leading to growth and better margins.