YOU SAID:

Coming down in light speed.

INTO JAPANESE

軽い速度で降りてくる。

BACK INTO ENGLISH

It comes down at a light speed.

INTO JAPANESE

軽い速度で降ります。

BACK INTO ENGLISH

I get off at a light speed.

INTO JAPANESE

私は軽い速度で降りる。

BACK INTO ENGLISH

I get off at a light speed.