https://bz.apache.org/ooo/show_bug.cgi?id=127979

          Issue ID: 127979
        Issue Type: DEFECT
           Summary: Abnormal CPU usage scrolling page
           Product: General
           Version: 4.1.6
          Hardware: Mac
                OS: Other OS
            Status: UNCONFIRMED
          Severity: Critical
          Priority: P5 (lowest)
         Component: ui
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Hi,
my system is MacOS Moave 

$ sw_Vers
ProductName:    Mac OS X
ProductVersion: 10.14.2
BuildVersion:   18C54

My Hardware:

iMac (Retina 5K, 27-inch, Late 2015)
Processor 3,2 GHz Intel Core i5
Memory 24 GB 1600 MHz DDR3
Graphics AMD Radeon R9 M390 2048 MB

When I scrolling a spreadsheet in Calc or a page in Write the system show an
abnormal CPU usage of OpenOffice process in the order of 60-90% with an heavy
slowdown of application. At the end of scrolling operation the CPU turn
immediately into 10-20%.

Starting OpenOffice with in Low Resolution there isn't the problem but the UI
is too blurred.

May be something about Apple Retina display?

Unfortunately it's very tedious use OpenOffice suite with this issue. 

Many Thanks for your support.

           Arnold

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