This is quoted from Discord. Hopefully this is ok to post. I felt that this was very good information.
The user smellycouch asked the questions and LukeChilds answered.
@smellycouch All good questions.
How fast is hyperdex compared to barterdex?
The HyperDEX GUI and BarterDEX GUI are purely GUI implementations over the marketmaker daemon. They both use the same underlying library to interface with the BarterDEX network. So actual real performance should be the same. However HyperDEX communicates in a much more optimised way which should result in updates from marketmaker being rendered much quicker (almost realtime) compared to BarterDEX GUI.
How long does it take to complete a trade with btc?
Currently, while we're in alpha it's hardcoded to require 1 conf for each tx on each chain. There are 5 steps to the atomic swap protocol from Alices perspective so it's roughly (alicecoin blocktime * 2) + (bobcoin blocktime * 3). So if Alice coin is BTC (10 min blocktime) and Bob coin is KMD (1 min block time) you should expect the entire trade to take around 23 minutes.
Obviously 1 conf for all coins regardless fo hashrate is not very secure, it just makes testing easier while we're in alpha. We will change these to more sensible values and allow users to override them with their own in the future.
We are also looking into implementing secure 0-conf swaps which will allow you to make any trade regardless of blocktime in a matter of seconds. 0-conf is secured by requiring both parties lock up collateral which will be confiscated in the event anything goes wrong.