fix: sluggish mouse scroll

README.md

@@ -196,6 +196,11 @@ Compact footers show only the first configured key for each action. The
 contextual help popup shows all alternatives and is the authoritative in-app
 reference.
 
+Set `mouse = true` to enable mouse-wheel scrolling. Each wheel event moves the
+focused pane by three items or rendered lines. Mouse reporting remains disabled
+by default so normal terminal text selection is unchanged; with mouse reporting
+enabled, terminals commonly require holding Shift while selecting text.
+
 The PR description editor defaults to Vim-style modal editing, including
 Normal, Insert, and Visual modes, word/find motions, deletion, system clipboard
 yank/paste, and soft-wrap-aware movement. Set `editing.mode = "standard"` for a
@@ -249,6 +254,7 @@ repository = ""                # optional "owner/repository"
 show_all = false               # requires repository
 limit = 50                     # 1-1000
 endpoint = "https://api.github.com/graphql"
+mouse = false                   # opt in to accelerated mouse-wheel scrolling
 mascot = false                  # show the optional Difflet terminal mascot
 mascot_expressive = false       # allow emotional Difflet expressions
 mascot_animated = false         # allow brief state-driven motion