Will the interest classes that children don't like affect their academic performance?

If the child goes to an interest class that he doesn't like, it won't affect his grades. If he attends an interest class that he doesn't like, he may not study hard, so the effect of this interest class may be greatly reduced or even useless, but it will not affect his academic performance, but will only affect his mood. Of course, if he is old, he will know that interest classes are good for him, but if he is not interested, his learning efficiency may be lower.