I don't really get the love for Nature but here is an example that uses "runtime" in this sense in Nature Computational Science https://www.nature.com/articles

I don't really get the love for Nature but here is an example that uses "runtime" in this sense in Nature Computational Science https://www.nature.com/articles/s43588-023-00589-x https://www.nature.com/articles/s43588-023-00589-x Here is one in Nature Physics https://www.nature.com/articles/s41567-023-02325-8 https://www.nature.com/articles/s41567-023-02325-8 Here is one in Nature Precedings https://www.nature.com/articles/npre.2011.5593.1 https://www.nature.com/articles/npre.2011.5593.1 And here is one in Nature Communications https://www.nature.com/articles/s41467-023-44008-1 https://www.nature.com/articles/s41467-023-44008-1 It isn't a matter of a lack of due care - it just really really doesn't matter which term you use as long as your meaning is clear.