Why is Windows 6to4 so bad?

Question

Windows

I discovered the adapter built into Windows 6to4, but I can’t understand why it works so sadly.
Can this be fixed somehow?

ping 2a01:4f8:173:1413::2 -t

Pinging 2a01:4f8:173:1413::2 with 32 bytes of data:
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=921ms
Reply from 2a01:4f8:173:1413::2: time=457ms
Request timed out.
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=1627ms
Reply from 2a01:4f8:173:1413::2: time=1609ms
Reply from 2a01:4f8:173:1413::2: time=375ms
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=1451ms
Reply from 2a01:4f8:173:1413::2: time=786ms
Reply from 2a01:4f8:173:1413::2: time=466ms
Reply from 2a01:4f8:173:1413::2: time=658ms
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=948ms
Reply from 2a01:4f8:173:1413::2: time=409ms
Reply from 2a01:4f8:173:1413::2: time=457ms
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=323ms
Request timed out.
Request timed out.
Request timed out.
Destination host unreachable.
Reply from 2a01:4f8:173:1413::2: time=2955ms
Reply from 2a01:4f8:173:1413::2: time=551ms
Reply from 2a01:4f8:173:1413::2: time=1483ms
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 2a01:4f8:173:1413::2: time=830ms
Reply from 2a01:4f8:173:1413::2: time=1252ms
Reply from 2a01:4f8:173:1413::2: time=948ms