Fix for personal best lap time not replacing world record lap time when playing without Internet connection.

修正了个人最佳单圈时间，不显示世界记录，在单机不联网状态下！

youdao

Record a lap time that's within 0.2 seconds of the best lap time for three consecutive laps.

连续三圈都破纪录，且破纪录的时间控制在0.2秒之内。

youdao

Anstey beat the lap record twice, posting a best new time of 128.40mph, and he also broke the race record by more than a minute.

BBC: Anstey pushes his bike to the limit around the TT course