Not sure how else to contact you, but I know scaling is on the mind of Appics' team and a lot of other steemians like myself. :) I wanted to bring vimm.tv to your attention for that purpose. They let you create an instant account and you can stream, chat etc. in a matter of minutes. Basically use the service in its entirety except earning Steem. As they describe it, it's a Steem exclusive offering. Just food for thought, might be a solution for Appics lurking somewhere in there. ;)

I know it's not ideal, but doing initial centralized accounts might be the way to go. And then once someone has brought more value to the ecosystem than it costs to make a Steem account, they could graduate to a VIP status and get their fully decentralized experience and earn tokens for themselves. Before they'd basically be earning to pay for their Steem account. You could present it as a game or smth. to make the experience fun for the end user. I don't know, I'm just brainstorming here, I'm sure there is an alternative solution if the blockchain doesn't evolve fast enough for your needs.