Magento 2 : Disable Default Modules for Performance

Question

We are trying to improve performance of our Magento 2 stores. But which default modules are there to be disabled without getting errors?

Currently I have this list:

Magento_AdminNotification
Magento_Backup
Magento_Vault
Magento_CheckoutAgreements
Magento_Dhl
Magento_Downloadable
Magento_Fedex
Magento_GoogleAdwords
Magento_GroupedImportExport
Magento_GroupedProduct
Magento_DownloadableImportExport
Magento_InstantPurchase
Magento_Marketplace
Magento_Multishipping
Magento_NewRelicReporting
Magento_Paypal
Magento_ReleaseNotification
Magento_ProductAlert
Dotdigitalgroup_Email
Magento_Rss
Magento_Signifyd
Magento_Authorizenet
Magento_Ups
Magento_SampleData
Magento_Usps
Magento_Braintree
Magento_Weee
Shopial_Facebook
Temando_Shipping
Magento_SendFriend
Magento_Review
Magento_ReviewAnalytics
Magento_WishlistAnalytics
Magento_GoogleOptimizer

Answer 1

I've had good success with disabling unused modules. Everyone will have different needs based on their store requirements.

Run the following command to see all modules active and disabled.

    php bin/magento module:status

Once you have worked out which ones you wish to disable use the following;

    php bin/magento module:disable Magento_SampleData

Once all your modules are disabled run the following comands;

    php bin/magento setup:di:compile
    php bin/magento setup:static-content:deploy

The following modules below are currently disabled on my store.

• Magento_SampleData
• Magento_Dhl
• Magento_Weee
• Magento_Fedex
• Magento_Marketplace
• Magento_Signifyd
• Magento_Ups
• Magento_Usps
• Magento_Braintree
• Magento_Version
• Amasty_SocialLogin
• Amazon_Core
• Amazon_Login
• Amazon_Payment
• Dotdigitalgroup_Email
• Hackathon_EAVCleaner
• Klarna_Core
• Klarna_Ordermanagement
• Klarna_Kp
• Temando_Shipping
• Vertex_Tax

Answer 2

I think you already have the store in production mode, right?

If you do not use Magento Business Intelligence service you may want to disable that, I find the admin performance improves. You can do that in the admin -> Stores -> Configuration -> General -> Advanced Reporting -> Advanced Reporting Service -> disable.

I also disable Shopial_Facebook for admin performance improvements (it is for Facebook integration that I usually do not use).

Then depending on what I need I usually have a look at the list mentioned in the answer of List of not-used core modules that can be turn off with no harm.