Should it be personal computer latency. Wonder about hat as we just talked about the importance of sub-second response time in 1990s (full screen 3270 after hi

Should it be personal computer latency. Wonder about hat as we just talked about the importance of sub-second response time in 1990s (full screen 3270 after hitting enter; even if no ims or db2 how can it be done …). The terminal keyboard response is fine (on 3270). Network (sna) … 1977 still have mainframe and workstation.