Quick unscientific test on one small file:
Size mode speed
25,144,135 cuetools-8.flac 83.21x;
25,149,808 cuetools-7.flac 110.74x
25,153,336 cuetools-6.flac 122.28x
25,161,336 cuetools-5.flac 152.34x
25,172,183 cuetools-4.flac 172.86x
25,171,795 libFLAC-8.flac 161.39x
25,182,825 libFLAC-7.flac 222.90x