I'm performing non equilibrium molecular dynamics with Material Studio 7.0 of a 2D system containing water and ions. I'm using Ewald summation for the electrostatic contributions. The computing time is very very long.  In which way this can be solved?Also at the moment it is not possible to restart jobs using the scripts in 2D PBC.  How can I fix this?

Thank you so much for your time.

Best Regards