Hi,
…regarding the third-party scripts do you mean the Adsense Codes?
As Tom mentioned, its best to see what Google PSI reports.
https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fdajobb.com%2F
It lists all offending scripts, styles, images, files etc.
It also gives you advice on how to tackle the issue it flags.
Any idea or suggestions to improve that from GP Team?
As for suggestions, consider trying optimization plugins.