The first three times query.find It's slow

Sir,

Version 2.6.0/2.7.0

The first 2-3 times query.find It's slow. It's going to speed up after about 4 times.

1st: 4154ms
2nd: 3066ms
3.rd: 782ms
4.th: 741ms

There are 360000 lines in the whole database, and use .order。

Test found that as long as there are search conditions, it is the same rule.
Could you check it, please? Urgent need of project.

Thanks a lot.

Rain
2020-07-31

首先，使用一个包含 360,000 行的数据库，应用搜索条件和排序，重现报告的 query.find 耗时，并比较前四次运行。调查初始搜索速度较慢的原因；当首次运行的性能问题得到解决，且测量结果显示出有所改善且可重复的耗时后，即视为完成。