Slow performance on Big Sur
paul at researchware.com
Mon Dec 14 15:46:58 EST 2020
On 12/14/2020 2:04 PM, J. Landman Gay via use-livecode wrote:
> My client is running Big Sur and says that changing cards in a stack
> causes a very slow, stuttering display. The background image appears
> in chunks and text in the fields comes in as sequential pieces. The
> order of the display varies, sometimes the text appears first,
> sometimes the background image. The first few cards are fairly normal,
> but as she pages through the stack it gets slower.
> I had her watch Activity Monitor and CPU usage goes up as she
> navigates through cards. At first the display is fairly normal but
> each successive card change increases CPU useage a little bit. She
> stopped when usage got to about 50% when she said it was unusable.
> This was in the IDE. She says the standalone is even slower.
> Has anyone seen this? On Mojave and Catalina everything is fine.
I had a weird display issue where a transition between two cards left
with one card semi-transparent behind the new card. It was also slow. I
have a visual effect dissolve between these two cards I removed the
visual effect and changing between the cards was fast and clean.
Examine any visual effect transitions you may have between cards.
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