What are some alternatives?
Imagify - Optimize and resize images online and through your CMS.
Gravity Forms - Gravity Forms is one of the best and easiest contact form plugins to create modern forms for websites powered by widely-used WordPress.
way2enjoy - Try image Optimizer. Compress and optimize image,PDF,MP3 by w2e image compressor. Resize image, compress image by lossy/lossless image optimization.
Yoast Plugins - Yoast offers plugins to improve SEO and optimize web sites and blogs.
ImageOptim - Faster web pages and apps.
Wordfence - Comprehensive security plugin for WordPress.