May be you have changing content on your website (dates, visitor counters, other numbers which change regularly on each visit) and if yes, wrap them with class="notranslate" to not use disk space and cache files.
We can also offer you to use our new Enterprise service. In that case there will not be a need to install software on your server and keep cache. Everything will be done by our translation delivery network. You can check https://gtranslate.io/faq
section for Enterprise to learn what it is.
If you are interested, you can use our contact form on home page, so we can provide you a beta account to try it.