Just ran Tekken 3 (actually tekken3a) as a test in 140, and it seems to be about half the normal speed than normal on my old machine. Attract mode: ~48% in 0.139u2 and u3 (I don't have u4) versus ~23% in 0.140. Doesn't seem to be anything at MAWS stating namcos12.c was updated (actually, nothing under tekken3* since 0.130u1).