go into freeview, then ctrl-v again with no spacebar, this will give freeview but with mexes and healthbars and you can adjust height, 0 and . (ins and del) on the number pad will rotate the view and there is no height restriction. if you hit space it will exit from this view.
the single threaded benchmark is the most relevant for faf https://www.cpubenchmark.net/singleThread.html
Because you played these replays in 2017 FAF cannot open them because it was played with an older version
However if you enable Game Data Cache in the settings
(settings, data and caches) they might work maybe, or it could be some other issue
Excellent post Biass, thanks for this information
the cpu benchmark is made by playing back snippets of a replay