Change speed/thread settings for faster encoding. Change-Id: I74d93eac26ae8700a48c437fe235643810de1ca0 Bug: None Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/206480 Reviewed-by: Marco Paniconi <marpan@webrtc.org> Reviewed-by: Marco Paniconi <marpan@google.com> Commit-Queue: Jerome Jiang <jianj@google.com> Cr-Commit-Position: refs/heads/master@{#33208}