We may have to wait for avalanche until 2022, according to their deliverables timeline https://read.cash/@Bitcoin_ABC/the-bitcoin-abc-2020-2022-deliverables-timeline-a815cdbc
That will be too late. Waited an hour for a comfirmation last night. If you use different coins you realise that it is a big deal.
There is always variance. 10m is too long anyway. I transferred 5 different coins to the same exchange. Bch was by far the longest. We will see but the people saying all is well- wrong
The variance is waaayyy overboard with the current DAA. But yes, of course Avalanche will make 0-conf safe for exchanges in 2-3 secs. But it is not a quick fix.