improve throttling, so we don’t lose progress events
improve throttling, so we don’t lose progress events

see here:
https://github.com/tus/tus-js-client/commit/9940f27b2361fd7e10ba58b09b60
d82422183bbb

transloadit/uppy,transloadit/uppy,varung-optimus/uppy,transloadit/uppy,transloadit/uppy,varung-optimus/uppy,varung-optimus/uppy