That's going to be beyond the scope of my knowledge, since I am not a dev. I would not have a very good idea of what would be the ideal setup for someone focused on that single use-case.

I don't think there are going to be any hardware constraints for handling a high volume of small lightning transactions, though. Transactions on lightning don't have much data footprint to speak of, unlike on-chain. This is because on-chain you have to keep a copy of EVERYONE's transaction data, not just your own, while lightning you are only concerned with the updates to your own channel states.