Much faster than Official VSFilter 2.39 & 2.40Subpics are now drawn directly in YUV/RGB as needed to improve performanceOfficial VSFilter always rendered subtitles in RGB and did a RGB -> YUV conversion when outputting YUV formats More efficient Blur codeAlpha blending on dirty areas of the frame onlyAlpha-blending with sub-sampled/interlaced chroma where applicableAddition of numerous caches to speed up animated effectsProper implementation of animation detection to speed up static typesettingNew script parser to speed up loading of very large subtitle scripts75% reduction in CPU load overhead when idle
maybe you should start a compiled work of every updates including MPC-HC, CCCP, LAVs, MadVR, etc. and pin it, saves alot of space.