play1.x with scala was quite experimental (play2 is really different and robustly designed) and those benchmarks always generate trolls... Anyway, I can't make people change their mind about those points even if I had numbers to show because everyone sees what he wants to see. This is just subjectivity ;)
This benchmark is based on Play 1 but you can see Japid is 4 - 5 times faster than the Scala template