But yesterday I once moved MB8 Coin which only needed 1 confirmation to send coins and this was very fast when compared to Waves.
Indeed, for the time being there are a lot of altcoins that can have speeds exceeding Waves, including what you are talking about, namely MB8 Coin.
But unfortunately MB8 coin is not included in the list of top 100 CoinMarketcap, maybe 300 is also not included and this is a bit of a problem for MB8 Coin.
With a market capacity of below 300 Coinmarketcap, the speed of the transaction will be questioned because it is certain that the network is not dense.