Test your website speed
I just found this website from google where it tests the speed of a website for free, which I assume for us artists would be testing our portfolio sites.
Site is here: testmysite.thinkwithgoogle.com
Google thought my website was pretty good in general.(and if anyone else thinks so I use adobe portfolio) I wouldn't worry too much, but I think its a good tool to be aware of and I just thought I'd share this to the forums.
The main thing to be aware of is to optimise images for the web by not making them too big and saving them for the web at 72 dpi. I use the save for web plugin in IrfanView to do that but there are loads of ways to do it. You can also further shrink them by using compression software like FileOptimizer- again there are probably many ways to do that as well but I like FileOptimizer and IrfanView because they are free and Open Source and they seem to work ok.