Set the Compression level to use from the five available levels. Higher levels will be slower to compress but can yield a lower memory footprint. It is important to test your compression results to find the best results for your project. The compression level dictates how aggressively ACL tries to optimize the memory footprint. Higher levels will yield a smaller memory footprint but take longer to compress while lower levels will compress faster with a larger memory footprint. Medium strikes a good balance and is suitable for production use.