如何增加我的wordpress网站的移动和桌面Google页面速​​度得分？

Question

我已使用DIVI（3.21.4版）主题在wordpress上建立了网站 我已经与高迪共享托管。 Google页面速​​度洞察力使我的网站在移动和台式机上的得分分别为26和66。加载时间为3秒。目标是在移动设备和台式机上分别达到85分和90分。

Issues shown by google page speed, gtmetrix & pingdom test:
1. enable Gzip compression
2. Reduce http requests (111)
3. save in next gen formats
4. optimize images

Steps I have taken:
1. images optimized and size of page reduced from 9MB to 5MB
2. Gzip plugin used- this was of no use as godaddy does not allow gzip compression on shared hosting
3. installed Lazy Load by WP Rocket plugin
4. W3 Total Cache
5. WP Performance Score Booster- this plugin helped improve score from 30 to 60 for desktop.

以上内容均未改善http请求。他们仍然是111。请帮助提高我的得分和页面速度。

请为w3总缓存插件建议最佳设置。

注意：

1. I can't afford dedicated server.
2. Can't buy 3rd party expensive plugins either.
3. Plugin you suggest should be compatible with Divi theme.