1080p movie with lag and Firmware update

ajlcneves

Hello beelink
I have the GT1 Ultimate with the S / N: A3DEGBJF60264 and Firmware: GT1_709N0_3Demmc_20180718-191039,
and when I go to see movies in the video player or kodi the 4k movies run very well but in 1080p they are with lag and they catch a lot!
What can I do, is there any newer Firmware upgrade?
Some time ago you have made this link available: https://beelink-my.sharepoint.co ... MAdjVQuKNA?e=gAbzcp , with the GT1_709N1_AP6255 Firmware,
is this a more recent update and can I upgrade my GT1 Ultimate?
Thanks
Best regards