We have been, and will continue to do so. Note that BitPay, however, only uses Bitcoin and Bitcoin Cash, and is often believed to be a Bitcoin Cash partisan, reducing our chance of making headway.
You mean like CoinPayments.net?
https://twitter.com/bitcoingold/status/1057018778255613953
You mean like LolMiner?
See: lolMiner 0.6 - alpha preview is available (1080ti: 89sol/s, 1080: 54 sol/s, Vega 64: 44sol/s)
We’re working hard and making progress.