diff --git a/frontend/apps/reader/modules/readerrolling.lua b/frontend/apps/reader/modules/readerrolling.lua
index d4307d946..2c5afb370 100644
--- a/frontend/apps/reader/modules/readerrolling.lua
+++ b/frontend/apps/reader/modules/readerrolling.lua
@@ -884,7 +884,9 @@ function ReaderRolling:onUpdatePos()
     self:updatePos()
 
     Device:setIgnoreInput(false) -- Allow processing of events (on Android).
-    UIManager:discardEvents(true) -- Discard events, which might have occured (double tap).
+    UIManager:discardEvents(0.2) -- Discard events, which might have occurred (double tap).
+    -- We can use a smaller duration than the default (quite large to avoid accidental dismissals),
+    -- to allow for quicker setting changes and rendering comparisons.
 end
 
 function ReaderRolling:updatePos()
diff --git a/frontend/ui/uimanager.lua b/frontend/ui/uimanager.lua
index 03d6296db..c7a544771 100644
--- a/frontend/ui/uimanager.lua
+++ b/frontend/ui/uimanager.lua
@@ -1081,7 +1081,7 @@ function UIManager:discardEvents(set_or_seconds)
     else -- we expect a number
         delay = TimeVal:new{ sec = set_or_seconds, usec = 0 }
     end
-    self._discard_events_till = self._now + delay
+    self._discard_events_till = TimeVal:now() + delay
 end
 
 --[[--