diff --git a/drawing.lua b/drawing.lua
index 3bc879e..cab5dea 100644
--- a/drawing.lua
+++ b/drawing.lua
@@ -54,6 +54,7 @@ function Drawing.draw(line)
           -- create a faint red box for the name
           love.graphics.setColor(1,0,0,0.1)
           local name_text
+          -- TODO: avoid computing name width on every repaint
           if p.name == '' then
             name_text = love.graphics.newText(love.graphics.getFont(), 'm')  -- 1em
           else
diff --git a/text.lua b/text.lua
index 20cc782..83e185b 100644
--- a/text.lua
+++ b/text.lua
@@ -14,7 +14,7 @@ function Text.draw(line, line_width, line_index)
   if line.fragments == nil then
     Text.compute_fragments(line, line_width)
   end
-  line.screen_line_starting_pos = nil
+  line.screen_line_starting_pos = nil  -- TODO: avoid recomputing on every repaint
   if Debug_new_render then print('--') end
   for _, f in ipairs(line.fragments) do
     local frag, frag_text = f.data, f.text