With any digital camera, there is a conversion from the sensor data to jpg.
The camera software uses interpretive algorithms to make this change. Nokia/Lumia had one set of algorithms in Lumia Camera. Microsoft has a different set of algorithms in Microsoft Camera.
With your Lumia 830, you can convert to jpg yourself. Use the capture DNG feature. Put the RAWER app on your phone to do the "conversion to jpg" yourself or process the DNG on your computer..
If the phone didn't "convert to jpg" you'd just have a dump file of the data from the sensor. That is not an image. It's just a data file.
Honestly, I like Camera360 Sight app a lot. The shots look good and it is a fast shooter. If you want point and shoot, try that. It doesn't have a lot of settings and manual adjustments. What it does have, as chancooluk pointed out, is the same algorithms you are used to from Lumia Camera. Give it a try and see if the pics don't look better to you.