That's my experience too; one could call the DPP software slow or basic but in terms of getting those unique/ mythical "Canon Colours" from point and shoot cameras right up to a DSLRs, no other software converts the raw files so well.
DPP works, and you have a license for it at hand when you have a Canon camera. The controls are a bit crude though, and the user interface design is stuck at the good old Amiga 500 days, but that seems common to japanese software in general (I have to work with Omron machine vision software at work...).
I used ART Agriggio when I still had my EOS R. It's more powerful and has finer controls, but the learning curve is a bit steep. Lightroom is easier to learn. But it is open source and thus cheap to try. I used it for years quite happily.