China Post EMS delivery time to Bicester UK

Parcel / package was posted / shipped via China Post EMS (Express Mail Service) on the 17 Aug 2017 and delivered to the destination address in Bicester UK on the 21 August 2017 which took only 4 days delivery time. That is very fast delivery by China EMS in term of international delivery standard. Below is tracking info from China Post EMS and Royal Mail UK tracking

Tracking Number：LX131637550CN
Your item was delivered(UNITED KINGDOM GBOX 6) at 2017-08-21 09:41:00
Timing Site Status
2017-08-17 00:08:00 GuangDongShengGuangZhouShi 51032100 Posting
2017-08-17 22:35:47 GuangDongShengGuangZhouShi GUANGZHOU Despatch from Sorting Center
2017-08-19 17:47:00 UNITED KINGDOM GBGBLALA Arrival at Sorting Center
2017-08-21 09:41:00 UNITED KINGDOM GBOX 6 Delivery

Item:
LX131637550CN
from China (People's Republic)
Latest update: Delivered
Your item, posted on 19/08/17 with reference LX131637550CN was delivered in BICESTER PDO on 21/08/17.
Thank you for using our International Tracked service.
Date Time Status Track point
21/08/17 09:41 DELIVERED21/08/17 BICESTER PDO
21/08/17 07:49 ON DELIVERY BICESTER PDO
21/08/17 06:56 AT DELIVERY OFFICEBICESTER PDO BICESTER PDO
20/08/17 15:10 ON ITS WAY TOBICESTER PDO SWINDON MAIL CENTRE
20/08/17 12:22 ARRIVED (MDN) AT SWINDON MAIL CENTRE
19/08/17 17:47 ON ITS WAY TOSWINDON MAIL CENTRE HEATHROW WORLDWIDE DC
19/08/17 14:34 ARRIVED IN THE UK HEATHROW WORLDWIDE DC