I did about 4 group/club rides before I decided that not only did I 'suck' at them, but more importantly I didn't enjoy them. It seemed to me that their only goal was to go as fast as possible. I'm sure they thoroughly enjoyed their ride at their pace. Myself, I don't like to try to go fast all the time.
The countryside around here is beautiful and I like to ride at my own pace and check out scenery, sounds, smells, flowers, etc. I like to stop next to a lilac bush and have a long rest/water break and smell the blossoms and hear the bees. Sometimes I like to push myself to go fast, and sometimes I like to just poke along and listen to the crickets.
I do like to ride with friends, but we never have going fast as our goal. It's fine if you like the sense of friendly competition, but it's just not my thing.
If meandering along at a pleasantly easy pace means that i 'suck'....well then I proudly embrace that!