Updated Q&A (markdown)

Q&A.md

@@ -6,10 +6,12 @@ First, please try to reproduce the issue on your own. If it's reproducible, plea
 ### The map performance is poor, how can I improve it?
 
 The performance mainly depends on number of visible elements and visible map area. The optimization strategies are: 
-* Toggle off all currently unused layers (especially Relief Icons)
-* Open the map in a small (about 960x540) window. The map will be the same, but it will work much faster as rendering area is smaller
-* Close all unused tabs and applications (the performance depends on RAM and CPU)
-* Do not generate too big maps (use the Points number = 10K)
+* Toggle off unnecessary layers. Especially take care of the _Relief Icons_ layer – it’s the most resource-demanding one.
+* If you have a wide screen, open the Generator in a separate browser window, make it _much_ smaller (about 900 x 560 pixels) and re-generate the map. Then zoom in to see the map in detail. It will reduce the rending area and drastically improve the performance.
+* Generate maps with _Points number_ = 10K. Points (cells) number highly affects performance. 
+* Toggle off map and element filters.
+* Close all irrelevant browser tabs and applications.
+* Use the top-edge browser (updated Chrome of Firefox).
 
 ### My previously saved map is not working properly. What should I do?
 If there is no version conflict, please raise a defect. If your map is obsolete, you may either use an [appropriate version](https://github.com/Azgaar/Fantasy-Map-Generator/wiki/Changelog) of the Generator or re-create a map in a current version. The tool is under development and version conflicts are inevitable.