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What should I do? MBPr 13"

I downloaded the PDF that you had attached - Scrolled through pages, zoomed in and out and started scrolling again, then hit full screen and I did not see any lag.
{This while I've got 2 windows of Safari with 8 tabs open on one and 3 on the other}

Not sure if I got lucky with the macs..FWIW, I have a rMBP-13 Early 2015.
 
I downloaded the pdf also on my 2014 base retina imac and on my no frills 2015 13" rmbp. Both are on osx 10.11.1. I noticed no lag either when scrolling or zooming or anything else.
 
Barna Biro said:
First gen maxed out 13" rMBP here... it's butter smooth ( scrolling, zooming, navigation, etc. ) using default Preview app. What exactly were you doing with that PDF? Were you by any chance resizing the window? That's not hardware related lag... it does look ugly sometimes, but it's the dumb software ( Preview + the OS rendering engine ) trying to readjust and scale the content on almost every mouse move and it clearly can't always keep up with the speed you're resizing the window at. Other PDF readers might be smarter and more performant in this matter ( e.g. Acrobat Reader / Pro is visibly worse, it struggles even with the scrolling... either way, it's not a hardware issue ).

Future OSX / App versions might eventually eliminate such issues. It's only really annoying ( in my opinion ) if you're used to resizing windows quite often... personally, I almost never do that because everything I run is 99.9% of the time fully maximised ( not full screen, just maximised ). Up to you...
Click to expand...

I thought of that option too. Will try to download adobe pdf reader today and see if that helps the problem.

But like I said, it's not only with pdf's.

At this moment, I am sure there is an OS problem and not a hardware one. I want to keep my mind open and hope that El Cap will fix these issues.
 
jackson93 said:
I thought of that option too. Will try to download adobe pdf reader today and see if that helps the problem.

But like I said, it's not only with pdf's.

At this moment, I am sure there is an OS problem and not a hardware one. I want to keep my mind open and hope that El Cap will fix these issues.
Click to expand...

I use a program called skim for my pdf's it's light on resource use, preserves your battery and has some nice features.
 
Just a note: I've stated that Adobe Reader ( Pro version at least ) seems to make it worse. Scrolling, zooming, navigation, etc. was smooth in Preview but windows resizing might not always be due to non-hardware related problems ( such problems *might* be eliminated in future software / OS updates ).
 
maflynn said:
What does that do over preview or quick look?
Click to expand...

Just that it's light on resource use (although El Capitan may sort out the dreadful battery use preview gives with PDF's), it's smooth and seemingly lag free and opens quickly, it has a few nice note taking abilities for studying as well.
 
Samuelsan2001 said:
Just that it's light on resource use (although El Capitan may sort out the dreadful battery use preview gives with PDF's), it's smooth and seemingly lag free and opens quickly, it has a few nice note taking abilities for studying as well.
Click to expand...
Ahh thanks, if I have a moment, I'll check out that app.
 
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