i also tested my LN node setup with a script some time ago and a LND node was able to handle 33 transactions per second. dont know what WOS got as node or if the got multiple.
Discussion
Oh I am sure they got the infra, itโs just how well it is tuned for spikes in volume of invoices. Probably some throttling is there to protect it, but who knows besides them. ๐ถ๐พ๐ซก