https://bugs.documentfoundation.org/show_bug.cgi?id=152176

            Bug ID: 152176
           Summary: Calc data entry and cell move slowdown
           Product: LibreOffice
           Version: 7.1.0.0.alpha1+
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: [email protected]
          Reporter: [email protected]

Hallo dear LibreOffice dev. team,

i'am running LO on a Linux Mint XFCE edition 19.3 (on a HP630 laptop) and 21
(on a Panasonic Toughbook CF-52) for quite some time and since several LO
versions.

But since versions >=7.1.0 i noticed on both maschines a significant lag when
using calc during text/number entering and navigating cells with the arrow
key's.

subjective pretty much to the point of unuseability.
Objectively i would aprox. acount the delay to 200-400ms. But when fast typing,
it can be notice pretty easily.

Procedure is as follows:
1) open new empty calc spreadsheet
2) try typing "1" (or any other letter) followed by down arrow and try to past
a single 1 in each cell per row.

you can notice that due to the delay many more 1's end up in a single cell
(like "1111") even you press "1" and down-arrow followed by the next "1" in
clear succession.

I searched the Bug reports and forum entries and found a lot of similar
problems with various versions. I tried them without any success.

Today i downloaded several older versions and did a side by side comparison
with the same user profile and found that it can be tracked down to not present
in LO version 7.0.6.2 and present from 7.1.0.0-alpha1 onwards.

I hope someone from the dev team will take a look into it, as it seems to be
not the usual "reset your user profile" solution in this case.
Maybe test it on older HW...
If more info or more tests are needed, i'am willing to support.

I hope to find a solution, as this problem forces me to not upgrade which i
would like to do to participate in newer features.

Thanks in advance.

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