Of course, Zhang Yanhang's lack of time can't always blame time itself; it's more because the area he cleans increases in size, naturally leading to longer required times.
This also results in the fact that even though Zhang Yanhang's cleaning efficiency has been improving, time just occasionally becomes insufficient.
The best example is Raccoon City. With his current cleaning efficiency, it only takes a few seconds to clean up Raccoon City, which used to take him a week. After all, Raccoon City is only 42 square kilometers,
but facing the 40,000 square kilometers of the Umbrella Biochemical Test Field, it's entirely different. It's a thousand times the size of Raccoon City, so naturally, it requires consuming a thousand times more time, plus the even more time-consuming task of opening treasure boxes, and recovering treasure boxes and monster corpses, leading to time running short.
