Try to improve performance for the master reducing the number of calls to `HepMC::signal_process_id` and dropping some try/catch.
Try to fix performance for the master:
- avoid multiple calls to
HepMC::signal_process_id
- remove
using
- remove
try {} catch
where it is not needed.
Tag @jchapman
Marking urgent as this is needed to understand the performance bottlenecks.
Edited by Andrii Verbytskyi