I don't like eating slowly. I think it's a waste of time. I want to eat quickly.
・「I don't like eating slowly. I think it's a waste of time. I want to eat quickly.」
（意味)ゆっくり食べるのが嫌い。時間の無駄だと思う。早く食べたい。
<例文>I don't like eating slowly. I think it's a waste of time. I want to eat quickly. I usually finish my lunch in five minutes.
<訳>ゆっくり食べるのが嫌い。時間の無駄だと思う。早く食べたい。普段昼食は5分で終わるよ。
ご参考になれば幸いです。
I hate taking too much time eating meals because it's a waste of my time, so I just eat quickly.
I hate it when meals just drag on and on instead of just finishing up quickly.
この場合、次のような言い方ができますよ。
ーI hate taking too much time eating meals because it's a waste of my time, so I just eat quickly.
「時間の無駄なので、食事に長い時間をかけるのが嫌だから、さっと済ませる」
to take too much time ~ing で「〜するのに長時間かける」
ーI hate it when meals just drag on and on instead of just finishing up quickly.
「食事をさっさと終えるのでなく、ダラダラ長引くのが嫌だ」
to drag on and on で「ダラダラ長引く」
ご参考まで！
アメリカ合衆国 
カナダ 
