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Excellent advice from the folks above, thanks.
To weigh in here - there are multiple variables that can affect WiFi speed (as has been stated), some of these are:
Local interference on the bands used for transmission - equipment in the area can heavily affect the frequencies used (even things you may not even think of - microwaves, industrial equipment, etc).
Internal wireless speed - this one has been mentioned above, some machines have a hardware limit on the connection speed, even if the full 1gb is available.
The fact that you're getting great speeds via a wired connection definitely rules out the broadband itself as the issue.
I see now, so there is not really shape point way since it's quite normal.
I will try the adaptor that you suggested once. and maybe getting longer Lan cable to connect to my laptop.
it was really nice to have you guys on my post thank you so much !