Page speed is increasingly important for websites. Performance is User Experience and not only a Development Issue. Performance is a process and starts in conception and design.
19. @webinterface
1 SECOND DELAY
in page response can result in a
7% REDUCTION IN
CONVERSION.
Source: Mobilism: High Performance Mobile
20. @webinterface
An e-commerce site is making
$100,000 PER DAY
1 SECOND DELAY
could potentially cost you
$2.5 million
in lost sales every year.
Source: Data Monday: E-commerce Performance
27. @webinterface
JACOB NIELSEN:
WEBSITE RESPONSE TIMES
Source: https://www.nngroup.com/articles/website-response-times/
0,1 - 0,2s 0,5 - 1s 2 - 5s 5 - 10s
Instant Immediate User Flow Keeping the
user´ s attention
28. @webinterface
LOADTIME FINGER DOWN ANIMATION FINGER UP
Source: https://docs.google.com/presentation/
max 100ms max 6ms
chunks
do idle/
cleanup in
50ms chunks
in case finger
down
happens again