No. You have no control over most elements of Internet connections.
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When have you seen or which websites ? Are you asking for gaming lag? If yes, what is configuration of your system? How do you access internet ? Is it direct or shared?
Never lag may be not possible, but it can be reduced. However more information is needed.
Todays most games are based on high resolution & require more RAM to run properly. Also they are required to configure correctly. Either it is software part or hardware part.