Major optimization refactor, across the board

+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster
  startup; ~5-20% general boost
+ reduce consing, function calls & garbage collection by preferring
  cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and
  various cl-lib filter/map/reduce functions) -- where possible
+ prefer functions with dedicated opcodes, like assq (see byte-defop's
  in bytecomp.el for more)
+ prefer pcase & cond (faster) over cl-case
+ general refactor for code readability
+ ensure naming & style conventions are adhered to
+ appease byte-compiler by marking unused variables with underscore
+ defer minor mode activation to after-init, emacs-startup or
  window-setup hooks; a customization opportunity for users + ensures
  custom functionality won't interfere with startup.

modules/tools/term/autoload.el

@@ -1,4 +1,4 @@
-;;; tools/term/autoload.el
+;;; tools/term/autoload.el -*- lexical-binding: t; -*-
 
 ;;;###autoload
 (defun +term (&optional project-root)
@@ -6,7 +6,7 @@
 non-nil, cd into the current project's root."
   (interactive "P")
   (let ((default-directory (if project-root (doom-project-root) default-directory)))
-    (call-interactively 'multi-term)))
+    (call-interactively #'multi-term)))
 
 ;;;###autoload
 (defun +term/popup (&optional project-root)
@@ -14,10 +14,9 @@ non-nil, cd into the current project's root."
 current project's root."
   (interactive "P")
   (require 'multi-term)
-  (let* ((default-directory (if project-root (doom-project-root) default-directory))
-         (buffer (multi-term-get-buffer current-prefix-arg))
-         (window (doom-popup-buffer buffer)))
-    (select-window window)
+  (let ((default-directory (if project-root (doom-project-root) default-directory))
+        (buffer (multi-term-get-buffer current-prefix-arg)))
+    (select-window (doom-popup-buffer buffer))
     (setq multi-term-buffer-list (nconc multi-term-buffer-list (list buffer)))
     (multi-term-internal)))