The best replacement for response time is refresh rate.

The best alternatives to response time are rated as following:
★★★★★  refresh rate
★★★★  hz
★★★★  throughput
★★★  input lag
★★  latency
★★  contrast ratio
★★  reaction time
★  waiting time
★  execution time
★  turnaround time
★  service time
★  cpu utilization
★  elapsed time
★  5ms
★  time constant
  load time
  8ms
  8ms response time
  utilization
  refresh rate led

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Speaking about response time, one probably shouldn't forget about monitors.

Other search terms related to response time and their ratings are:
★★★★★ monitors
You have in mind a companion for response time and it is not yet here? Propose!



Google Trends

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response time
refresh rate
hz