docs: add tooltip performance recommendations

CHANGELOG.md

@@ -41,6 +41,7 @@
 
 ### Bug Fixes
 
+- **[Tooltip UI - Low/High-End Recommendations]** Added a short recommendation block in the Learner Tooltips settings so low-end users have a lighter starting point and high-end users can enable the full tooltip stack without guessing which toggles belong together.
 - **[Map - Minimap Fade No Longer Hides Icons]** (#17) Distance-based minimap fading now clamps to the configured faded-icon opacity floor instead of reaching 0 alpha. The fade distance can visually de-emphasize distant icons, but only the range cutoff can remove them from the minimap.
 - **[Regression Tests - Learner Spawn And Tooltip Fallback]** Fixed the two previously failing specs: AscensionDB-owned NPC spawn overrides now keep their curated coordinates even in learner mode, preventing stale learner zones from leaking wrong-corner pins; and NPC quest-start tooltip fallback now calls `QuestieDB:GetQuest` correctly so objective summary text appears when no live objective tooltip is registered.
 - **[Performance - Minimap Filter And Learner Kill Hot Paths]** (#20) Reduced two likely stutter sources introduced after 1.6.2: minimap fade passes now cache expensive quest-filter visibility checks for already-visible icons instead of re-running them every 0.1s per icon, while still forcing a fresh check before hidden icons reappear; and the learner kill path no longer runs the spawn-evidence merge scan before the merger's three-evidence minimum can succeed.

Modules/Options/GeneralTab/QuestieOptionsGeneral.lua

@@ -496,6 +496,15 @@ function QuestieOptions.tabs.general:Initialize()
                         order = 8.55,
                         name = function() return l10n('Learner Tooltips'); end,
                     },
+                    learnerTooltipRecommendation = {
+                        type = "description",
+                        order = 8.555,
+                        name = function()
+                            return l10n(
+                                "Low-end PC: keep the learner extras minimal. Start with learner tooltips on, but leave the secondary tooltip, data source line, auto-resize, and the extra learner detail lines off unless you need them.\nHigh-end PC: turn on learner tooltips, the secondary tooltip, data source, spawn line, confidence line, total spawns, and auto-resize."
+                            )
+                        end,
+                    },
                     learnerTooltips = {
                         type = "toggle",
                         order = 8.56,