So I had my first few sales on Play of my real-time instrument. Yes.. Result.

However I have ended up refunding all purchases as all the users complained of impossible touch lag of around half sec.

Some of the phones I dont recognize but two of the phones are both Samsung Galaxy S7 running android 8.

I managed to get a dialog going with one of these guys and worked with him to try to resolve the lag but in vain.

Now I fully understand and accept that these construct apps are running JavaScript in cordova and it is interpreted language using browser APIs and we are never going to get blazing native like performance.

However... bearing in mind that my app has no moving graphic elements (0% GPU) and ultimately consists of about 20 events that just play a sound when the screen/sprite is touched. Which results in about a 1-3% CPU on most phones I have tested.

Then I would expect that

Samsung Galaxy S7 (which although not a new phone I would still consider an extremely high spec phone (Snapdragon 820 - 4 GB high speed ram , quad core up to 2Ghz processor, adreno 530 GPU still considered high end even today) - running Android 8 ...

....should have no issues with touch lag.

So why does it? and is this common? And if it happens one a simple app like mine surely it happens on all these games that you guys are making?

I don't want this to be a bash Construct thread, I would like to use it to investigate, get hard data, get some feedback and maybe even resolve.

I would say IE is pretty dead. You shouldn't go near it for construct games. and im not entirely sure if supports everything Construct can do these days.

Also, Microsoft moved to Edge a few years ago. and even they are going to change edge to use Chromium soon, if they haven't already.

You should stick to Firefox, Edge or Chrome for your debugging.

and although I would love to promote Firefox over chrome it just cannot beat the brute performance of Chrome at the moment.

CGamez

You could probably cut those 5% of users off by building apk for android 7+ only.

I tested my game with c3-runtime on two devices (android 6 and android 7) - both times it didn't start, saying I need to update webview.

I thought web-view was disabled since android 7 and construct android games running 7+ would just use chrome directly now?

Nepeo

I am currently uploading an app and going to upload a proper demo in the next few days so will get a better picture soon!

and not using worker mode as advised by Ashley. also it looks like chrome devs have fixed the desycro issue (https://github.com/Scirra/Construct-3-bugs/issues/3369) with APKs for a future release but from reading the notes Im still not sure that that means that desyncro option will be available in APKS in future?

The final APK I made I went with Android 8 as I felt that this would block out a lot phones that would be older less powerful so more laggy.

Fib nothing sophisticated at all, just bog standard sample player, im playing a set of samples over a range of frequencies in this case its not when button is pressed (like a piano) but as Im trying to emulate a flute / whistle its doing a little calculation to figure out which is the highest not pressed button (i.e. open hole) then playing the sample at frequency accordingly. Then just added reverb and an LP filter to take off any harsh high ends.

Cant really do anything sophisticated off the bat as we dont have access to oscillator creation part of the audio API in construct or the modular routing of tracks/ effects which is 1) why I am a little excited that it may be possible using scripting and 2) I will raise a suggestion for them to be added in as I think music instruments / synthesizers / sequencers etc etc could be a cool avenue for Construct.

There are several posts on this subject in the forum, but essentially, it's normally something missed, like content rating etc

It's just bad UI in the console.

Hey man thanks, sizcoz I think you were right. Nothing to do with Android Studio and Gradle. Damn they send you down a rabbit hole for nothing...!!!!!

I added an address, and I think it was waiting for me to just review the warning by clicking on the warning even though it was already displaying it. Then the submit for review became available.

Thanks.

as you said "bad UI in the console."

cheers

Im gonna leave this post up as others may fall into this trap.