BLTP Lag
Try clearing your cache and repair your client — that often resolves slow TP loading issues. I use it every day and only experience lag rarely; closing and reopening the TP window resolves it 100% of the time (for me).
(Instructions can be found by following the links to support and typing in “trading post” and “repair” respectively.)
I actually just reinstalled the game fresh since I upgraded to windows 10
oh i should clarify that it was also lagging before i upgraded from window 7 to 10
Clearing the GW2 cache usually solves Trading Post issues. (Repairing won’t clear the cache.) Also, make sure nothing is interfering with your Coherent program, as that is what runs the TP.
If you continue to have issue, you can contact the CS Team via the ‘Support’ link above/below and ‘Submit a Ticket’ for assistance.
Good luck.