semcore.pl February 20, 2026
Your site's load speed has a direct and measurable impact on user experience, engagement, and conversion rates. Being the largest asset you'll typically find a page, images are often a prime target for optimization.
Below is a breakdown of how much individual images could be reduced by using PicPerf. This analysis was run by loading the page on a simulated mobile device. Every image was then run through a series of optimizations to estimate potential savings.
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Original Size
Optimized Size
Savings
594 KB
36 KB
94%
15 KB
2 KB
86%
22 KB
5 KB
79%
26 KB
5 KB
79%
6 KB
1 KB
75%
486 KB
121 KB
75%
https://semcore.pl/wp-content/uploads/2020/05/ContentHouse-do%C5%82acza-do-e-Izby-1-1-e1589275166287.png
30 KB
8 KB
74%
12 KB
3 KB
72%
16 KB
4 KB
72%
4 KB
1 KB
72%
6 KB
2 KB
71%
6 KB
2 KB
71%
8 KB
2 KB
69%
7 KB
2 KB
67%
11 KB
4 KB
67%
5 KB
2 KB
66%
22 KB
8 KB
64%
6 KB
2 KB
63%
6 KB
2 KB
61%
5 KB
2 KB
61%
6 KB
2 KB
59%
6 KB
3 KB
59%
4 KB
1 KB
58%
27 KB
11 KB
57%
31 KB
14 KB
55%
5 KB
2 KB
55%
31 KB
14 KB
54%
https://semcore.pl/wp-content/uploads/2026/02/626773907_1494063972726771_492760959801360604_n-768x960.jpg
86 KB
40 KB
53%
3 KB
2 KB
50%
5 KB
2 KB
50%
32 KB
16 KB
50%
71 KB
36 KB
49%
https://semcore.pl/wp-content/uploads/2026/01/616832809_1481768417289660_7772649052804704404_n-480x480.jpg
31 KB
16 KB
49%
4 KB
2 KB
46%
4 KB
2 KB
40%
717 bytes
434 bytes
39%
4 KB
2 KB
36%
3 KB
2 KB
34%
4 KB
3 KB
32%
https://semcore.pl/wp-content/uploads/2026/01/615143719_1474052808061221_2921843240105403110_n-768x960.jpg
177 KB
121 KB
31%
822 bytes
615 bytes
25%
1 KB
804 bytes
25%
7 KB
6 KB
18%
6 KB
5 KB
17%
432 bytes
360 bytes
16%
11 KB
9 KB
16%
34 KB
29 KB
16%