After installing Pentaho Data Integration 220.127.116.11, I have noticed that it would take several seconds to save a job or transformation. This slow saving activity also happens on the simplest of jobs of transformations, with only a single step. The way I can reproduce the issue on my side is by simply moving a step on the canvas, therefore modifying the job. Once I hit the Save button, the UI becomes unresponsive and finally completes the Save request after 5-10 seconds.
It appears to be related to the presence of the ESAPI.properties file. For some reason my Windows installation of PDI cannot find ESAPI.properties and then uses default values. Once I make an ESAPI.properties file available where PDI can find it, my Save action is immediate.