Hi @dulan isuru ,
please keep in mind with 4 GB RAM your laptop is at the "lower" end of the Win 11 requirement related to memory.
Also be aware Windows 11 insider preview version is not the final version.
It would help Microsoft to submit your feedback directly view Feedback Hub:
https://insider.windows.com/en-us/understand-feedback
https://insider.windows.com/en-us/insidewindows11/video/provide-feedback
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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten