Biofilter modelling

Dear,
I am running a biofilter model and it is too slow because of the layers. I have run this model before in West 2012 and I recall the modelling was faster. However, I do not remember what I did since it was more than 6 years ago.
Does anyone know how to improve the simulation speed? Any trick?
Best regards,
Pau

Pau, I apologise for the very late reaction to your post.
I have in the meantime answered to your colleague Elham through our Tech Support. As far as I know, she has now solved the problem.
If this should not be the case, please come back: I will do my best to react more promptly.

Hi,

I currently have a similar issue, trying to run the MBBR model in WEST2018dev, but it is very slow, also in steady state simulations. It takes about a minute to simulate roughly 0.002 days. Could you share the solution here as well Enrico?

Best regards,
Chaïm

Hello Chaim,
and apologies for this late reaction.

My reply actually meant that after I posted an earlier reply here and interacted with Elham's colleague through Tech Support, he replied that they had changed "something" and that issue disappeared.
So it's not really a solution I proposed, rather something they did.

I cannot help you here, sorry.