some beta testing i did for XAVC-S footage:
these improved my framerate by 20%:
26. set audio to 44.1 in hardware and premiere
audio pref – disable play audio while scrubbing
disable maintain pitch
audio hardware latency 200ms
disable sequence composite linear color
sequence audio settings 32000hz
sequence settings preview file 1920×1080 1/2 size video frame size 3840×2160 then 1/2 size playback
27. in monitor, pull markers together so there’s less tick marks per inch, the playback marker will go
offscreen while playing back.