https://bugs.documentfoundation.org/show_bug.cgi?id=104907

            Bug ID: 104907
           Summary: Scrolling will be slow when and max out CPU when
                    multiple images are stacked above each other
           Product: LibreOffice
           Version: 4.2.0.4 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Writer
          Assignee: [email protected]
          Reporter: [email protected]

Description:
It's a bit of theoretical example. Scrolling will be slow (and maxing out CPU)
when multiple images are layers above each other (which happens when importing
multiple images using drag and drop)

Steps to Reproduce:
1.Open example file
2.Scroll around
3.Take notice of CPU usage

Actual Results:  
Slow scrolling; high CPU usage

Expected Results:
Response scrolling; low CPU usage (similar to 4.1.0.4; 5%)


Reproducible: Always

User Profile Reset: No

Additional Info:
Found in:
Version: 5.4.0.0.alpha0+
Build ID: 9cfb2f2f03b5ec086487fd483298466db0b09010
CPU Threads: 4; OS Version: Windows 6.19; UI Render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2016-12-20_23:58:02
Locale: nl-NL (nl_NL); Calc: CL

and in
Versie: 4.4.6.3 
Build ID: e8938fd3328e95dcf59dd64e7facd2c7d67c704d
Locale: nl_NL

and in
Version: 4.3.7.2
Build ID: 8a35821d8636a03b8bf4e15b48f59794652c68ba

and in
Versie: 4.2.0.4 
Build ID: 05dceb5d363845f2cf968344d7adab8dcfb2ba71

but not in
Versie: 4.1.0.4 
Build ID: 89ea49ddacd9aa532507cbf852f2bb22b1ace28


User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:45.0) Gecko/20100101
Firefox/45.0

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