Buy order failed and slowly web

Hello develpers
xbtc/xusd buy order failed.
Web very slow
Transaction delay and heavy
And add farm menu to can get more profit
Thanks
Stack addeess : {ST37MZGZYRC0Y77AWBW2A0WEA4CDFRNWZZ8R147DH}

Thanks for your feedback. The limit bid price must be lower than the market price