Laravel is not a content management system (CMS), let alone aready-to-run
e-commerce platform. It’s a PHP framework, so you need a programmer who knows PHP and is very experienced with building e-commerce applications to use it to build whatever application you need. Think of this as building your own version of WordPress/Woocommerce from scratch.
To your specific question, yes and yes and yes and yes…. your website is going to “crack” and get “overloaded” and “malfunction” and “become slowly”… IRRESPECTIVE OF WHATEVER SOFTWARE YOU USE… if you have hundreds of thousands of products with a proportionate amount of traffic and orders, and it’s sitting on a tiny little server, or god-forbid, on a shared hosting account.
Whatever software you use, you need the right infrastructure to run it.
And whatever software you use, beyond a certain point, you’re going to have to tweak the application to better handle the load you’re throwing at it.
WordPress.com uses the same WordPress software to run millions of websites (including some very large e-commerce and news websites. But you can safely bet that their “WordPress” has a lot of customizations and optimizations, along with a massive infrasture and dozens of full-time engineers working around the clock to keep the ship afloat.
I’m NOT in any way saying WordPress and it’s leading e-commerce plugin, Woocommerce, don’t have their flaws.
I’m just saying you should put things in their proper perspective: a growing website will surely have growing pains, irrespective of what software you use. Some software may surely be able to handle those growing pains better than others, but you’ll still need the appropriate infrastructure and expertise to keep the boat afloat.
I’ll also want you to consider other options before building your own e-commerce application from scratch with Laravel.
1) Consider using other free and opensource applications specifically made for e-commerce (WordPress is a general-purpose publishing software, and e-commerce is just an add-on): eg Magento, OpenCart, Prestashop, ZenCart, etc.
2) Consider using a hosted e-commerce platform. Eg Shopify, GrooveKart, Volution, BigCommerce, Ecwid, Squaresapce, etc. You’ll have limited features, but you’ll never have to worry about the software itself. And you’ll surely be paying more and more as your site grows!
Good luck!