elisp mode set tab width to 2 spaces

Question

My global tab-width is set to 4. But in elisp-mode I get 6 spaces per tab in indentation. So the code after auto indenting looks like this:

(defun new-eshell ()
      (interactive)
      (when (one-window-on-screen-p)
            (let* ((lines (window-body-height))
                        (new-window (split-window-vertically (floor (* 0.7 lines)))))
                  (select-window new-window)
                  (buffer-name (eshell "eshell"))
                  )))

How can I set the indentation to 2 spaces?

Update: info for NickD

After I type C-h m I get this:

Enabled minor modes: Auto-Composition Auto-Compression Auto-Encryption
Cl-Old-Struct-Compat Delete-Selection Diff-Auto-Refine Display-Time
Eldoc Electric-Indent File-Name-Shadow Font-Lock Global-Eldoc
Global-Font-Lock Global-Undo-Tree Ivy Line-Number Menu-Bar Mouse-Wheel
Override-Global Pyvenv Shell-Dirtrack Tooltip Transient-Mark Undo-Tree
Yas Yas-Global

(Information about these minor modes follows the major mode info.)

Emacs-Lisp mode defined in ‘elisp-mode.el’:
Major mode for editing Lisp code to run in Emacs.

Doing the same in emacs -Q gives 2 spaces. So, something is wrong with the configs.

Answer 1

The error was here: (setq lisp-indent-offset 6). Changed it to (setq lisp-indent-offset 2) and it started to work.