With 360p → 720p (that destroyed D&D cartoon FTW!) I see quite an increase, from around ~34fps in latest v3.1.7 stable, to ~45fps in this alpha. That’s on RTX 3090, 100% memory set, on i9 7940X CPU (fairly old one) and 64GB of RAM. Preview parameters:
ffmpeg “-hide_banner” “-nostdin” “-y” “-nostats” “-t” “15” “-ss” “103.736” “-i” “W:/Video/Dungeons & Dragons Episode 19 The Last Illusion.mp4” “-flush_packets” “1” “-sws_flags” “spline+accurate_rnd+full_chroma_int” “-color_trc” “2” “-colorspace” “2” “-color_primaries” “2” “-filter_complex” “tvai_fi=model=chr-2:slowmo=1:rdt=0.01:fps=60:device=0:vram=1:instances=0,tvai_up=model=prob-3:scale=0:w=960:h=720:preblur=0.06:noise=0.14:details=0.33:halo=0.4:blur=0.23:compression=0.86:kcolor=1:device=0:vram=1:instances=0,scale=w=960:h=720:flags=lanczos:threads=0,split=2[out1][out2]” “-map” “[out1]” “-c:v” “tiff” “W:/Temp/436928168/temp/_tvai_249556639/%06d.tiff” “-map” “[out2]” “-c:v” “hevc_nvenc” “-profile:v” “main10” “-preset” “medium” “-pix_fmt” “p010le” “-b_ref_mode” “disabled” “-b:v” “0” “-map_metadata” “0” “-movflags” "use_metadata_tags+write_colr " “-map_metadata:s:v” “0:s:v” “-map_metadata:s:a” “0:s:a” “-map” “0:a” “-c:a” “copy” “-metadata” “videoai=Slowmo 100% and framerate changed to 60 using chr-2 ignoring duplicate frames. Enhanced using prob-3 with recover details at 33, dehalo at 40, reduce noise at 14, sharpen at 23, revert compression at 86, and anti-alias/deblur at 6. Changed resolution to 960x720” “W:/Temp/436928168/previews/Dungeons & Dragons Episode 19 The Last Illusion_3_chr2_prob3.mov”
However, the Chronos frames interpolation makes gray frames here:
GIF doesn’t play all 60fps, but the gray frames are visible every time, where calculated image content otherwise would be. It’s Proteus manual, the “estimate” button, as expected, doesn’t work either, even after dropping the necessary model for Alpha. 
Since it’s a preview, the creation/finalization of the 15s preview video file is fairly slow (TIFF files after all, from a HDD), it “feels” slower, than in current stable v3.1.7.
I hope the gray frames aren’t the cause of the increased performance…
Edit: They’re not - with Apollo model I see ~30 fps in v3.1.7 vs ~35fps, and Artemis with Apollo - ~30fps vs. ~37 fps in this Alpha. And no gray frames.
Color Correction maybe takes 1 fps out of the performance, if anything, I’d say the hit is negligible.
Gray frames issue is only with both Chronos models, with and without Replace Duplicate Frames option.
nice job. (but that speedup is only with small videos.)