Increase computational throughput of SE-CSLAM dycore

[PeterHjortLauritzen]

What is the feature/what would you like to discuss?

Increase computational throughput of SE-CSLAM dycore:

• no double advection of thermodynamic active species
• in FMT and FLT: no increased del4 sponge damping
• decrease nsplit to 2 in FMT

Is there anyone in particular you want to be part of this conversation?

No response

Will this change (regression test) answers?

Yes

Will you be implementing this enhancement yourself?

Yes