This is somewhat slow but nowhere near as bad as trying to load my portfolios on Trustnet.
I am, however, happy to wait with Trustnet because of the number of portfolios I have on the site and I appreciate that it might take some time for their computers to update everything each time.
Hargreaves Lansdown on the other hand, is very fast, but then it isn't free to view my portfolios as is the case with Trustnet.