Low level arrays wouldn't have this high-level ability, as such, they used tricks. They would often feign an amplification by many different means that could include concentrating the energy used better, increasing weight or increasing speed.
As such, the level needed to create such arrays was much lower because none needed such fine manipulation. To increase weight, you would only need to convert the energy used to make the array into something tangible at the perfect instance of contact.
To increase speed, you could easily use the energy used to create the array as a booster to slice through air, or propel something like a fist or sword forward. Also, concentrating energy was as simple as using the array like a funnel to focus it in a point.
