viaGenerateViasAtPoint very slow

We create a SKILL script to generate a lot of vias with viaGenerateViasAtPoint, everything is working fine but it takes a lot of time (more than 500 different points can take up to 20 minutes).

Doing a quick search in this forum we found this thead form a couple of month ago with a similar problem:

https://community.cadence.com/cadence_technology_forums/f/custom-ic-skill/38456/using-auto-vias-through-skill

They said that the issue is related to checkout and check-in of license each time this functions is executed, so when executed in loop for putting vias, it takes time. It takes check-out/in 12 tokens each time and thus takes time.

Because of that we suspect is this check-out/in of tokens that make the delay. We used to have a very similar problem with viaGenerateViasFromShapes but it was solved by using a list of shapes as a parameter in stead of a loop but viaGenerateViasAtPoint only takes a single point in stead of a list of points.

Replacing this:

    foreach( point ptsList
        viaGenerateViasAtPoint(cvID point myViaOptions)
    )

With this:

        viaGenerateViasAtPoint(cvID ptsList myViaOptions)

Gives an "Invalid point" error.

Is there a workaround? Are we making a mistake in the usage of viaGenerateViasAtPoint? Maybe there is another similar Via Function to use instead we are not aware of?

Thanks