Interative authoring of the IR in ADF Managed Virtual Network is disabling frequently

The testing of connections in linked services ,importing the schemas etc  interative authoring of the IR is getting disabled frequently and for enabling it its again taking 3 to 4 min not 1 min. A simple copy data activity is taking 2 sec of time with self hosted IR,here with Azure IR(managed virtual network) its taking about 2.4 min to be in queue and then its copying the data

I can see Interactive authoring for Azure IR is having the below option,