Speed? No, not really in comparison to any other LN implementation.
But Stellar will be supporting state channels in addition to payment channels, (presumably) allowing for even faster exchange operations (buy/sell market and limit orders) and path payments across multiple currencies, neither of which LN on Bitcoin can do (at least for now).
But Stellar will be supporting state channels in addition to payment channels, (presumably) allowing for even faster exchange operations (buy/sell market and limit orders) and path payments across multiple currencies, neither of which LN on Bitcoin can do (at least for now).