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Is lanczos 4 supposed to be that slow?

Posted: Wed Nov 12, 2025 5:19 pm
by faltonico
Hello!,
Just to be sure, is Lanczos 4 supposed to be that slow for the high zoom quality compared to all the other methods (even lanczos 3), in opening images?. The lag from from switching from one image to the next in full-screen mode is very noticeable. Sometimes i wonder if I reached the last image just for 3 images to go flinging by in quick succession.

I think my PC is no slouch (7950X3D, RX7900 XTX, 32 GB 6000 Mt/s), so i was wondering if it is really that demanding.

Thanks in advance!

Re: Is lanczos 4 supposed to be that slow?

Posted: Thu Nov 13, 2025 3:33 pm
by xnview
yes if the image is large

Re: Is lanczos 4 supposed to be that slow?

Posted: Fri Nov 14, 2025 12:50 am
by faltonico
xnview wrote: Thu Nov 13, 2025 3:33 pm yes if the image is large
Thank you for confirming that, i thought maybe my PC was faltering.

And thank you for all your efforts, this is truly amazing work.