Git clone is very slow under Ubuntu18.04

such as the title.
later, I thought the Internet speed was slow, but watching the video is very smooth, and the downlink speed can also reach 1m-5m. But the page downloads the file, but only 20k.
then I test my mac,git clone to 1m
and my Ubuntu16.04,Git clone to nearly 1m

.

then how should I check this Ubuntu18.04 problem here?

Ubuntu downloads network system
Jul.16,2021

has the problem been solved? is mine the same? Is there a solution tutorial

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3706b-2b8a9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3706b-2b8a9.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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