I found the simulation with Geant4(10.4) takes more time than that with Geant4(4.9.3p01).
For example, the running times are about 84s and 3s when 1million geantino through a world, which is created by G4Box, with Geant4(10.4) and Geant4(4.9.3p01) respectively. What is the reason can be for this?
In addition, the simulation with Geant4(10.4) is more slower than that with Geant4(4.9.3p01) when many physical volume, denoted by Cell, which is created by G4TwistedTub, placed inside a physical volume, denoted by Layer, which is created by G4Hype. What is the reason can be for this?