You have probably noticed that slow cookers give two heat settings for the vast majority of recipes. The first is low setting and the second is high, which is usually about double the time for the low setting. Two settings are given so that those using a slow cooker can have some flexibility with meal planning.
If you head out to work at 8am but want dinner at 5pm, obviously you will want to go with the low setting. But if you are home, does a high or low temperature result in a better end result?
For tough cuts of meat, cooking it for longer on low will result in much more tender meat when it comes to serving time.
You also tend to run the risk of overcooking when you cook on high as opposed to low, so if you have a tendency to run late or get stuck in traffic, low is your better bet to avoid overcooking, or get a slow cooker that will automatically shift to a “keep warm” setting after the cooking time is complete.
Overall, you will most often get a tastier dish when it is cooked on low as opposed to the quicker high temperature.