is there any guideline to solve this problem of pagespeed?
The below is the error of my site. Thanks!
please check below module, it will help you to improve speed.
If it solved your problem then mark as solution.
Thanks! @Sunil Patel
I have used this extension before but it is not working
my version is v2.1.3
In your case css render problem, so that module support only js render. if you move css into bottom then it will increase speed but for some time it will not look good.