I kinda like flawed companions, like 15 wis Jaheira or 15 con 8 wis minsc instead of optimized ones; but as some others said, you can fix her picking ASIs +1 in dex and con at level four unlike in previous games.
She would be a lot better slightly rounded up to 10 dex and 14 con.
I burned Ability Adjustment feat to do exactly that. I think at that point it was better than extra 2 WIS, just so she's a tiny bit less squishy with less horrible AC.
Lol I did that as well.
I was using her as a front line which is why, Shadowheart, Astarion, Gale and second Wizard on my character.
If making a Cleric myself I dump Int and Cha, also 12 str is fine.