It's a bit cheesy.

Meaning

It's not very sophisticated or believable, often in a humorous way.

Examples

• John: Did you see that new romantic comedy?
• Alice: Yeah, I did. <b>It's a bit cheesy</b>, wasn't it?
• John: Exactly! The plot was completely predictable. <b>It's a bit cheesy</b>.
• Alice: Still, it was enjoyable in a silly way.