我是否应该在c++中缓存此对象(SFML)

#include <SFML/Graphics.hpp>
#include <unordered_map>

std::unordered_map<std::string, sf::Texture> textureCache;

sf::Texture& getTexture(const std::string& filePath) {
    auto it = textureCache.find(filePath);
    if (it != textureCache.end()) {
        return it->second;
    } else {
        sf::Texture texture;
        if (texture.loadFromFile(filePath)) {
            textureCache.insert({filePath, texture});
            return textureCache[filePath];
        } else {
            // 处理加载失败的情况
            // ...
        }
    }
}

int main() {
    sf::RenderWindow window(sf::VideoMode(800, 600), "SFML Window");

    sf::Sprite sprite;
    sprite.setTexture(getTexture("path/to/texture.png"));

    while (window.isOpen()) {
        sf::Event event;
        while (window.pollEvent(event)) {
            if (event.type == sf::Event::Closed) {
                window.close();
            }
        }

        window.clear();
        window.draw(sprite);
        window.display();
    }

    return 0;
}