I have done a lot of research on this topic as this is one big issue for me.
my game seems to have a poor quality because of this, and it really anoys me. i cant make a game i love with construct 2 even if i love construct 2.
here are my thoughts on this:
1) it is NOT a construct problem! the jitter/stutter is everywhere in html5.
take a look here: http://www.thewildernessdowntown.com/
you ddont have to start the film. there are birds flying around smoothly and suddenly they begin to stutter, then they fly smoothly again.
i see this issue with EVERY html 5 game where are objects moving. even with the simplest animation (using chrome or firefox).
2) we are not alone with this problem and its not "new" so html 5 is new doesnt count. smooth movement and good audio are some of the MOST IMPORTANT things and should be the first things that work perfectly!
http://stackoverflow.com/questions/2241 ... on-stutter
http://stackoverflow.com/questions/1419 ... -in-chrome
3) it is NOT a hardware problem, at least in most cases. it doesnt matter if its a galaxy s2(crosswalk) or my "high end" gaming pc. this issue of the "micro stuttering" is always present
4) 
Colludium with the framedrop on start of layout: move all the objects you are using to the menu. then destroi them.
it will better the lag when starting the main layout. at least that solves the 25fps for 5 seconds on start of layout problem for me <img src="{SMILIES_PATH}/icon_e_wink.gif" alt=";)" title="Wink">
5) we should look out mfor any information if this will befiuxed in a later version of canvas.
i am especially speaking of crosswalk developpers. maybe they con do something. the least we should do is adress this issue to development teams of the software that causes it.
6) if those issues dont get fixxed within the next 6 month i really see no pont to develop with html5 at all. 
eli0s i totally understand your frustration, its the same with me.
the point is we (the developpers) did nothing wrong than chosing html5/canvas over a engine whith can handle our demand. html5/canvas might be god for point and click / drag and drop games. but nothing with "fast" animations then.
7) 
Ashley thanks for reporting that issue. the interesting part for me (and i think for many others) will be when the crosswalk team implements the update (i speaking about the intel xdk for android releases)
should we directly report this to the crosswalkteam (https://crosswalk-project.org/contribut ... _bugs.html)? or just wait till chromium has fixxed this issue and then report it there?
kind regards
joschi