例行检查 / Checklist

• 我已确认目前没有类似 issue (I have checked for similar issues)
• 我已确认我已升级到最新版本 (I have updated to the latest version)
• 我已完整查看过项目 README，尤其是常见问题部分 (I have read the README, especially the FAQ section)
• 我理解并愿意跟进此 issue，协助测试和提供反馈 (I am willing to follow up on this issue, assist with testing, and provide feedback)
• 我理解并认可上述内容，并理解项目维护者精力有限，不遵循规则的 issue 可能会被无视或直接关闭 (I understand and agree to the above, and I understand that the maintainers have limited time, so issues that do not follow the rules may be ignored or closed directly)

问题描述 / Bug Description

这行代码是直接扫group的全部key_hash，当同一group内的key达到一定数量级以后这步就会严重拖慢导入速度，并导致服务器高占用

复现步骤 / Steps to Reproduce

1. 导入Key

预期结果 / Expected Behavior

导入key的时间保持稳定并且不会占用过多性能

相关截图 / Screenshots