@Solla-topee Hello I have seen that page before. So I tried plugging the adapter on usb 2.0 port but it does not solved the problem. I am using a noise tune active Bluetooth headphone with it. 

@Solla-topee I am using a wireless Logitech keyboard and mouse on usb 2.0 port now and Tp-link Bluetooth adapter on usb 3.0 now and There is a delay only when I use my headphone when I use it by the adapter. If I use my headphone from my phone there is no delay. Also when I first plugged the adapter into my laptop, windows installed Mediatek drivers for Tp-link Bluetooth adapter ( The drivers which were installed for my in-built Bluetooth adapter ) . So I un-installed the current drivers and restarted the pc and then re-plugged the adapter. Now windows has installed its default Windows drivers. So is using other drivers from manufactures like Ralink, Mediatek or Qualcomm Atheros safe for this Tp-link adapter safe ?

@Solla-topee Hello I am using a Noise Tune Active Bluetooth Neckband ( No Model number mentioned on box, I think it has only one model. )
My laptop info :- 

Also is there any application or program to manage the adapter because Windows default drivers only provide basic functionality. So using special software can improve performance and functionality. Would you recommend any name of a software ?