Describe the factors that gave European countries an economic advantage in Asia from 1750 to 1900?

One factor that gave European countries an economic advantage in Asia from 1750 to 1900 is that Europeans were far more advanced than Asia, as many countries in Asia, at least the ones considered powerful, had isolationist policies, and resisted Western influence. This led to China and Japan, countries with a lot of resources and economic influence, missing the industrial revolution entirely and becoming far behind the West technologically. This allowed European countries to easily defeat Asian countries and expand their influence in the region, and acquire resources from these countries. They used their superior military strength to open more ports in China and Japan so they could trade with the region more efficiently. European countries such as Britain imported opium into China as to control them, and to simply have a good that they could trade with them, as China didn’t have a need for any European goods. Getting the Chinese addicted to these powerful drugs made the demand for it increase, and European countries were able to gain influence in the region, and gain an economic advantage.

I got an 85% for this, so it's not absolutely perfect, if you have anything to add to this feel free to say something in the comments