YOU SAID:

I hate when people walk slowly

INTO JAPANESE

人がゆっくり歩くのが嫌い

BACK INTO ENGLISH

I don't like people walking slowly

INTO JAPANESE

ゆっくり歩く人が苦手

BACK INTO ENGLISH

I don't like people who walk slowly

INTO JAPANESE

ゆっくり歩く人は好きじゃない

BACK INTO ENGLISH

I don't like people who walk slowly