Solana is even cheaper and faster to use than LTC.
Which is why it is so popular for hyperfast, low-value memecoin traders.
UX is better than LTC, fees are lower, also TPS of Solana is orders of magnitude higher than LTC. Thus LTC has no chance to get global adoption. It is only fast and cheap now, because barely anyone uses it. Look onchain for yourself, there is not much real activity there.
Not shilling SOL here, actually I dislike many things about Solana, but if we purely speak about suitability for global ecommerce for speed, price and UX, SOL beats LTC every time