Above viewport you have settings then open Engine Scalability settings if there is on High or Epic and you still have problem, look in World Outliner, if you have post process Volume under misc ,Screen Percentage default is 100 , and every camera have their own post process check them too
I hope that will help you.
thanks for your help i’m sure every thing is ok i check the setting and it is on epic and still have poor quality
but to day i tried to delete all unreal registry and every thing back to normal now the quality is perfect but i still have a problem of packing my projects
and i don’t find any thing to fix it
is there any one have this issue or it is only me ??