It will absolutely be more effective to move to an enterprise solution, 100%, for all the reasons I and others have touched on previously. However, it must be deployed properly, and if you're not up to it, then hit a pro to come in and do it. If you don't have the capacity to do it right the first time, you likely won't be able to do it over, either. That's not a dig at you; it's just us wanting to make sure you get the result you're looking for -- and one that's perfectly attainable, provided you use the right gear and approach.
Regardless of the type of traffic the endpoints are generating, you still want the baseline physical connection quality to be there. A product that's purpose-built for high user density, plus proper deployment based on RF and network admin best practices, will address your issue. Consumer products may, but I wouldn't leave that up to chance.
If it were me, I would hardwire in one (or a pair if co-interference is low enough) of Ruckus R710's, running Unleashed. Buy refurb/working-pull off of eBay or a surplus site if you have to. Just make the investment and get those radios in there. Your problems will all but disappear.