It would be interesting to add a classified ad section where there is a request or contract for product.
I.E. A mayor posts a request for product at a specific level and another mayor would choose to fulfull the product at the price offered.
The buying mayor's space in storage would be checked and allocated (held temporarily). Funds would be extracted in escrow temporarily.
A building/selling mayor could fulfill the contract, thus transferring product and receiving funding.
If a buyer to seller match does not occur within some reasonable expiration time. I.e. time to make said product plus some reasonable addition, the request for product is cancelled returning funds and space.
I think if the price ceiling in products on Global Trade HQ were removed, there would be a slew of people complaining about it as well.
As far as faster devices, I have a Galaxy Tab Pro 12. It's pretty fast and I still have difficulty acquiring items posted.
First there is the balance and spread of products at specific levels making it hard.
Then there is the constantly SOLD or Llamas accounting message.
I even added to a hardwired Ethernet on the tablet and have difficulty.