Some source subtitle files are too fast/slow (perhaps due to 30/25FPS conversion) - it would be useful to set a speed for the subtitle playback (faster/slower than the actual times in the file). This could be implemented by a multiplier applied to the actual times (e.g. 1.2x the times in the file would increase the speed by 20%, 0.7x would reduce the speed by 30%, etc.).
Some source subtitle files are too fast/slow (perhaps due to 30/25FPS conversion) - it would be useful to set a speed for the subtitle playback (faster/slower than the actual times in the file). This could be implemented by a multiplier applied to the actual times (e.g. 1.2x the times in the file would increase the speed by 20%, 0.7x would reduce the speed by 30%, etc.).