How to leave the base sort order of a table on a JOIN?

Question

MySQL

There is a table table1. There the main index is product_sort_id and there is a product_id column.
All products are sorted as needed and driven into this table so that the first product is product_sort_id=1, the second product is product_sort_id=2, and so on. The purpose of this venture is to remove sorting from a huge number of queries and speed up query processing.
The essence of the problem - if I do select, then everything normally displays the sorted data by the product_sort_id column.
If I do this SELECT LEFT JOIN table2 ON (table1.product_id=table2.product_id) then sorting is obtained by product_id.
How to make sorting by product_sort_id WITHOUT USING ORDER BY!!! ORDER BY eats at least 0.2 seconds for each request.

Answer 1

For some reason, order by started working quickly, so the question is removed.