I am working on a basic game with NPCs, and each NPC has a resolution of 120x1030, it holds all animations in a single file. Each animation has 4 frames and I just add them under each other.
The problem is, I have noticed some small performance drops (Got a pretty weak computer) when trying to use sprites with the spritesheet (I have a sf::IntRect set up, so it only displays a portion of the sprite).
Is the small performance drop because of the large spritesheets? If so, can I do anything to optimize it? (Putting them outside the spritesheet is not an option because I need a lot of different humans)