What type of schedule are you using? Flexible Daily with watering restrictions? That’ll turn on most of the advanced features by default.
This talks about why shrubs are watered longer. In terms of soil type, this was deeply helpful to me to see what I had. The type of soil will impact how often and how long Rachio waters. If the soil holds more water, water less often but deeper, etc.
Also as I found out recently, make sure your selected weather station is reporting your precipitation correctly. Rain is free and my Rachio wasn’t counting it until I changed weather station to one actually reporting precip.