I changed the site template and updated it, and compressed the site code with optimizer plugins to speed up the site. There is no problem with the site template in any browser, but Google does not display it correctly
When you say Google, do you mean Chrome doesn't display the new version? If you add something like ?version=1.1 at the end of your css file it will upload the new css file right away. For example: <link rel="stylesheet" type="text/css" href="style.css?version=1.1"> Whenever you edit your css file change the version to a new one (i.e. ?version=1.2) to upload your edited css file.
It sounds like you may have issues with compatibility on Chrome If you have a preview of the website I am sure some of us can take a look at the issues for you and give some advice.
Click the name of your site and then click “Health.” Click “Fetch as Google” and then enter the URL of the page you want to re-cache in the text box. Click “Web” from the drop-down menu and then click “Fetch.” Wait until the status reads “Successful,” click “Submit to Index” and then click “URL.”