How can I locate and remove unused Javascript for faster online store speed?

[Lulakarpo]

Hi, I'm trying to get my online store faster. I've been already deleting products/pictures/files that are no longer needed. I've also compressed images and cleaned up old apps and optimised SEO. However, when testing the speed on PageSpeedInsight, it suggests to reduce unused Javascrip. I've checked for this on theme.liquid, header.liquid, and product-template.liquid. but couldn't find the codes that need to be removed. 

Also, I couldn't find the old app codes to remove them manually.

Where are these annoying codes exactly? 

Any help would be much appreciated. 

[OneCommerce]

Hello,

We are OneExperts from OneCommerce - an eCommerce solution platform.

Pagespeed report show that you need to:
- Reduce unused JavaScript
It was hard to fix this issues if you are not a developer, some of my suggestions for you are that you learn about web workers to fix these problems, you can refer to the documentation on youtube.

Hope this can help you solve the problem.

If you need any further support, hit us up at julia@onecommerce.io for replies within minutes

[kazi]

Hello @Lulakarpo  APP scripts are running from apps you cant handle them or check if any of them inside the theme files.  There  are many resources in google you can follow them

https://weeklyhow.com/how-to-clear-unused-codes-in-shopify/

https://sitechecker.pro/site-audit-issues/remove-unused-javascript/

If you need more help feel free to contact thanks.