  We analyse the low latency performance of the three Adaptive Bitrate (ABR)
algorithms in the dash.js Dynamic Adaptive Streaming over HTTP (DASH) player
with respect to a range of latency targets and configuration options. We
perform experiments on our DASH Testbed which allows for testing with a range
of real world derived network profiles. Our experiments enable a better
understanding of how latency targets affect quality of experience (QoE), and
how well the different algorithms adhere to their targets. We find that with
dash.js v4.5.0 the default Dynamic algorithm achieves the best overall QoE. We
show that whilst the other algorithms can achieve higher video quality at lower
latencies, they do so only at the expense of increased stalling. We analyse the
poor performance of L2A-LL in our tests and develop modifications which
demonstrate significant improvements. We also highlight how some low latency
configuration settings can be detrimental to performance.
