SecData is a cloud based service, with load spread over multiple different cloud providers (including Amazon and GoDaddy). We have tested many times the load you require and SecData has no difficulty keeping up.
If you are using SecAst to access the SecData, then by design your calls will never be delayed/dropped. SecAst allows calls to proceed in parallel to checking the SecData service for fraudulent phone numbers and IP addresses. If a match is found (and the score exceeds the threshold you define) then the call is disconnected and the caller’s IP is blocked.