diff --git a/modules/emacs.el b/modules/emacs.el
index edfce93..6601f96 100644
--- a/modules/emacs.el
+++ b/modules/emacs.el
@@ -153,7 +153,13 @@
 
   (add-hook 'minibuffer-setup-hook (lambda () (setq gc-cons-threshold most-positive-fixnum)))
 
-  (add-hook 'minibuffer-exit-hook (lambda () (setq gc-cons-threshold 800000)))
+  (add-hook 'minibuffer-exit-hook (lambda () (setq gc-cons-threshold 100000000)))
+
+  ;; -----------------------------------------------------------------------------------------------
+  ;; Increase the amount of data which Emacs reads from the process.
+  ;; -----------------------------------------------------------------------------------------------
+
+  (setq read-process-output-max (* 1024 1024)) ;; 1 MB
 
   ;; -----------------------------------------------------------------------------------------------
   ;; Additional key-bindings.
diff --git a/modules/helm.el b/modules/helm.el
index 5c53e46..fdc7b68 100644
--- a/modules/helm.el
+++ b/modules/helm.el
@@ -134,7 +134,9 @@
   ;; -----------------------------------------------------------------------------------------------
 
   (use-package helm-lsp
-    :after (helm lsp-mode))
+    :after (helm lsp-mode)
+    :config
+    (define-key lsp-mode-map [remap xref-find-apropos] #'helm-lsp-workspace-symbol))
 
   ;; ---------------------------------------------------------------------------------------------
   ;; `helm-projectile'
diff --git a/modules/languages.el b/modules/languages.el
index c2b48ac..446170c 100644
--- a/modules/languages.el
+++ b/modules/languages.el
@@ -34,8 +34,9 @@
     ;; Protobuf
     protobuf-mode
     ;; Python
-    pyvenv
     cython-mode
+    lsp-pyright
+    pyvenv
     py-autopep8
     ;; Rust
     cargo
@@ -159,9 +160,14 @@
       (make-local-variable 'lsp-enable-snippet)
       (setq lsp-enable-snippet nil))
     :hook
-    (python-mode . lsp)
+    (python-mode . (lambda ()
+                     (require 'lsp-pyright)
+                     (lsp)))
     (python-mode . x-lsp-disable-snippet))
 
+  (use-package lsp-pyright
+    :defer t)
+
   (use-package py-autopep8
     ;; Note that this package require autopep8 to be installed.
     :bind (("C-c C-f" . py-autopep8-buffer)))
diff --git a/modules/programming.el b/modules/programming.el
index 1326e97..95d9f59 100644
--- a/modules/programming.el
+++ b/modules/programming.el
@@ -179,12 +179,12 @@
           ("C-p" . company-select-previous))
     :config
     (setq company-idle-delay 0
-          company-minimum-prefix-length 3
+          company-minimum-prefix-length 1
           company-tooltip-align-annotations t)
     ;; For this to correctly complete headers, need to add all include paths to
     ;; `company-c-headers-path-system'.
     (add-to-list 'company-backends 'company-c-headers)
-    (setq company-backends (delete 'company-clang company-backends))
+    ;; (setq company-backends (delete 'company-clang company-backends))
     (setq company-backends (delete 'company-dabbrev company-backends))
     (setq company-backends (delete 'company-capf company-backends)))
 
@@ -294,21 +294,17 @@
     :commands lsp
     :init
     (setq lsp-diagnostics-provider :flycheck
-          lsp-signature-auto-activate t
-          lsp-signature-doc-lines 1
           lsp-enable-indentation nil
-          lsp-file-watch-threshold 10000))
+          lsp-file-watch-threshold 25000)
+    :hook ((lsp-mode . lsp-enable-which-key-integration)))
 
   (use-package lsp-ui
     :commands lsp-ui-mode
-    :init
-    (setq lsp-ui-doc-enable nil
-          lsp-ui-sideline-enable nil)
+    :bind
+    (("M-#" . lsp-ui-doc-focus-frame))
     :config
-    (define-key lsp-ui-mode-map
-      [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
-    (define-key lsp-ui-mode-map
-      [remap xref-find-references] #'lsp-ui-peek-find-references))
+    (define-key lsp-ui-mode-map [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
+    (define-key lsp-ui-mode-map [remap xref-find-references] #'lsp-ui-peek-find-references))
 
   ;; -----------------------------------------------------------------------------------------------
   ;; `semantic'