Installing Sample Data breaks Magento by making it too slow

Magento 2 Installation
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Download Sample Data via Composer

Magento has a really useful command for installing all of the sample data from the Magento Repository via Composer. This step can normally take a couple of minutes to complete. At times, it may appear that nothing is happening, but just give it time.

Download the same data [01:01:10]

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bin/magento sampledata:deploy

It’s been a couple of minutes and now Putty is awaiting our next command. All we need to tell Magento to do now is install the latest changes we’ve just made [01:01:56]

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bin/magento setup:upgrade

Now, when we refresh the Frontend and Backend, you can see what Magento now looks like with Sample Data.

After this section in the How to install Magento 2.3 and build a web server tutorial, my only recommendation would be to run:

bin/magento cache:enable