Hey Matias, thanks for letting me know. So it might be still an issue. Are you also using the Lazy/On-Demand calculations? They yield the same results, just that the process contributions or the Sankey Diagram are "calculated" on-demand when clicking on it. The Lazy calculations take a few seconds (standard and preferred way to calculate results) whereas the Eager calculations take a few minutes. SSD storage can improve the speed a lot, as well as sufficient RAM (at least 8GB).