opengl – Elevated CPU utilization when rendering sprites

I am making a recreation in fashionable OpenGL, C++ however I am having issues with optimization. Each time I render the sprites the CPU utilization begins to extend.

Code:

void GameController::Render() {
    shaders.Use();
    glBindVertexArray(vao);

    for (const auto& layers : chuncks) {
        for (const auto& layer : layers) {
            const bool isVisible =
                (layer.place.x + layer.measurement.x >= camera->pixelRect.min().x) &&
                (layer.place.x - layer.measurement.x <= camera->pixelRect.max().x) &&
                (layer.place.y + layer.measurement.y >= camera->pixelRect.min().y) &&
                (layer.place.y - layer.measurement.y <= camera->pixelRect.max().y);

            if (isVisible) {
                textures[layer.id - 1]->Utilization(GL_TEXTURE0);

                shaders.SetUniform("textureSampler", 0);
                shaders.SetUniform("projection", camera->projectionMatrix);
                shaders.SetUniform("translate", layer.place);
                shaders.SetUniform("scale", layer.measurement);

                glDrawArrays(GL_QUADS, 0, 4);

                textures[layer.id - 1]->Unused();
            }
        }
    }
    glBindVertexArray(0);
    shaders.Unuse();
}

CPU utilization is beginning to get unusually excessive. I’ve considered implementing separate threads, one for updating and one for rendering, however I do not know if it will likely be environment friendly.