Input slow and high CPU on large forms

When having a large table with several inputs there is a noticeable lag in the input box. Also CPU usage stays at 12.5% table is about 1500 rows.

Commenting out in line 250 bootstrap.css stopped the issue :

a,
area,
button,
[role="button"],
/*input:not([type="range"]),*/
label,
select,
summary,
textarea {
  -ms-touch-action: manipulation;
      touch-action: manipulation;
}

[patrickhlauke]

filed https://bugs.chromium.org/p/chromium/issues/detail?id=800522 /cc @mustaqahmed @RByers @NavidZ

in the meantime, i think we can consider removing the touch-action directive, as for mobile-optimized viewport sites we’re only missing out fast click behavior in iOS when the user actively zoomed in, and on desktop with touch it’s only the Windows 10 / Microsoft Edge case that would incur the tap delay.

[kamelkev]

@eeaquino Thank you for your sample. This seems to produce the identical result I’m seeing with my response.