Inexplicable delays when calling (OnPrem) Business Central API’s (and how to solve it)

We always try to upgrade all customers to latest release – and we encountered some delays in API communications, which seemed to got worse at every new upgrade. At some point, every API call took from 500 to 1000 milliseconds. I think we all agree that this is FAR to high. Even for a simple call, like getting the companies, it took so long.

Source : Waldo’s Blog
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