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Current compound\u2013protein interaction prediction models rely on complex features to enhance capabilities, but this often incurs substantial computational burdens. Indeed, this challenge arises from the limited understanding of data imbalance between proteins and compounds, leading to insufficient optimization of protein encoders. To address this issue, a sequence\u2010based predictor named FilmCPI is introduced, which leverages data imbalance by learning proteins with their numerous corresponding compounds. This approach enables the characteristics of each protein to be effectively represented through itself and its relationship with corresponding compounds. Without increasing parameters, FilmCPI consistently outperforms baseline models across diverse datasets and split strategies, and its generalization to unseen proteins becomes more pronounced as the datasets expand. 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