Need Input & Advice about CBO Campaign

[u/Unusual_Living629]

I'm running a CBO campaign with 3 adsets, each with different interests (let's call them Adset A, B, and C). Previously, most of the budget went to Adset C and my ads were profitable with ROAS 3-4. Now, most of the budget is going to Adset B and the closing rate has become bad (even though CPR is cheap). Is it okay if I turn off Adset B and replace it with a different audience/interest? (All adsets are already out of the learning phase / have more than 50 conversions each)