Tabby is slower, SSH tunnels are lagging, SSH agent connection is broken

[arttit]

After the latest update, Tabby has become much, much slower when handling SSH connections.

SSH tunnels are extremely slow, making it difficult to work efficiently.
I tested with another SSH client (Putty), and the tunnels work normally.

SSH agent authentication no longer works, even though it was working fine in the previous version.
Failed to authenticate using agent: Error: Key(IO(Custom { kind: UnexpectedEof, error: "early eof" }))

These issues make it hard to use Tabby for SSH connections.

Version: 1.0.221
Platform: Windows x64 10.0.19045
Plugins: search-in-browser, save-output
Frontend: xterm-webgl