If we had seen more action with Bond, it would have been better.
If the bad guy hadn't died so quickly and there had been more suspense, it would have been more exciting.
ーIf we had seen more action with Bond, it would have been better.
「ボンドの活躍がもっとあったら良かったのに。」
If we had seen more action with 〇〇, it would have been better. で「○○の活躍がもっと多かったら良かったのに」と言えます。
ーIf the bad guy hadn't died so quickly and there had been more suspense, it would have been more exciting.
「悪者がすぐ死なずに、もっとハラハラがあれば、もっと面白かったのに。」
it would have been more exciting で「もっと面白かったのに・もっとワクワク・ハラハラしたのに」
ご参考まで!