Are you using framelock? That has increased the overall speed of HB significantly.
I do not have any direct recommendations for use with my profiles. I personally use Singular for all my testing/development and personal use. I have never used IWantMovement.
If you are having issues, you can send a log file of the issue occurring, but if it is outisde of the plugin, I can't offer much support.
Also, "Loading Tiles" is not necessarily happening indefinitely, and if it is, that means you have a lot to download. But whats listed at the bottom of HB is just the LAST thing that HB has posted as "Goal Text" and if no other commands have come up since then that clear or show goal text, then Loading Tiles will stick around...a lot.