... or you can change to "Ciphers chacha20-poly1305@openssh.com" in your ssh server to use chacha20-poly1305 instead of heavier AES.
or if you haven't disable it, try changing orders in putty's Connection -> SSH -> Cipher and make chacha20 be the first one.
but Kex can be slow (or very slow) if you're using a very long DH key, ECDH key can be faster.

Azami wrote on 2022-02-09, 02:55:

Hi, […]
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Hi,

Since I believe my port is now fairly usable, maybe I should post it here.

Short version, it's available here, with binary builds for convenience:
https://github.com/Toyoyo/putty-win32s/

Do you moved away from github? Not only your github repo is now 404, and also your username.

No I didn't move, seems my account was shadowbanned, I opened a ticket.

Should be fine now

Azami wrote on Yesterday, 20:25:

Should be fine now

yeah.

BTW I added some more wrappers so puttygen works in NT 3.1 (besides progress bar is not showing in NT 3.1 as its comctl32 is too old), winsftp also works in NT 3.1 (it needs -"runtime win=3.10" linker switch)
https://github.com/roytam1/putty-win32s/commits/putty-0.83/