比較N2

〜にしては

for... / considering... (unexpectedly)

Structure

N + にしては；普通形 + の + にしては

Considering the standard suggested by the first clause, the result is unexpected. Attached to nouns or plain clauses + の.

彼は日本人にしては、英語がとても上手だ。

For a Japanese person, his English is remarkably good.

初めての料理にしては、上手にできた。

For a first attempt at cooking, it turned out well.

The result must differ from what one would expect from the first clause. としては means as a general standard of.