When i edit a document which is 1000 pages — it "hangs up" when i try to delete a sentence – it takes 4-5 seconds from me clicking on the first letter of the sentence before it let me mark the whole sentence either by using the mouse or keyboard (arrow-buttons left, right). I want it to go smoothly as in other softwares like word office. The only programs im running while using Indesign on my laptop which btw is a fast laptop – editing using other softwares like pdf pro goes smoothly using my laptop – is "Creative Cloud" in the background while editing — but i had no such problem while i wrote this problem to you.
How can i fix this problem?
That is a huge document. You’d have been better off breaking it up into chapters.
For now, turn off preflight, turn off thumbnails in the pages panel and see if that helps.
It worked! Thank you sir!