title: Faster alternative to apache airflow for workflows with many tasks
body: <p>I currently use Apache Airflow for running data aggregation and ETL workflows. My workflows are fairly complex with one workflow having 15-20 tasks and have branches. I can combine them but doing so would negate the features like retry, execution timers that I use. Airflow works well except that it is quite slow with so many tasks. It takes lot of time between tasks. </p>
  
  <p>Is there an alternative which can execute the tasks faster without gaps in between tasks? I also would like to minimize the effort needed to switch over if possible. </p>