Colin on 16 Feb, 2018 03:42 PM
Thanks for reaching out to us. Running a benchmark in low-power mode or with substantial processes running in the background can affect your benchmark score, and we recommend avoiding these circumstances to provide the most accurate results. Volume settings are not expected to impact any of your scores, and display brightness will not affect CPU or Compute benchmarks in any way. The Dim Screen option is available for battery benchmarks, and may result in slightly more consistent battery benchmark scores.
Please note that there is currently an issue preventing the Compute benchmark on iOS from finishing if Airplane Mode is active. We're investigating this issue now.
If you have any other questions, please let me know and I would be happy to help out.