Match attendance is poor and our results are not good enough.
Attendance is low and our results have been poor.
We get few spectators and our results are not good enough.
サッカーチームの「成績」は「results」になります。
例えば、
We have got good results this season.
(今年の成績がよい)
他には、「league position」(リーグのポジション)という表現を使えます。
Our league position is 3rd.
(リーグの3位)
そのシーズンの点数・ポイント数の話である場合、「points」や「league points」という表現を使えます。
We got 45 points last season.
(去年、45点を取得した。)
「観客動員数は低迷、成績もいまひとつだった」= Match attendance is poor and our results are not good enough. / Attendance is low and our results have been poor. / We get few spectators and our results are not good enough.
ボキャブラリー
観客 = spectators / attendance (=出席)
低迷 = poor / low / few ~s
成績 = results
いまひとつ = not good enough