I would very much like to see a pay-as-you-go cloud pricing model that allows you to pay to go over these limits (within reason.) For the use case I'm envisaging, filtering largish buffers of Cap'N Proto data (I'm tickled that both of these things are your babies!) I can use streaming fetch API to stay within the memory limit, but the 50ms limit would really be a hard wall that would cause requests to fail on larger amounts of data. I'd be happy to pay in those cases for extra execution time.