Batch processing takes more time for S1 products

Hello everybody,
I am using Graph builder to process a time series of 4 Sentinel-1 images.
My processing step contains subset, remove thermal noise, calibration, speckle filtering and terrain correction.
I don’t if it will take how many time.
I’ll be grateful if someone can help me.

Have you seen this FAQ entry? I created a graph, but it takes very long to finish