Hi Luce,
As this is a portfolio plugin – I’ve designed the plugin in a way to help creatives create better portfolios ?? – there should only be 10 – 20 Portfolio entries in your portfolio – only display your best work – quality over quantity.
Even the 100 entries that the plugin is limited to today is a stretch and an edge case. I really don’t recommend using it that way – not only will it slow down the portfolio archive page, but also lose emphasis on the important works.
Alternatively – if you must show more than 20-30 Portfolio entries at a time – I recommend that you categorize them instead using portfolio categories, that way each category can have a couple of entries.
If you’re using the plugin just as a gallery and not a portfolio – I recommend looking for a Gallery plugin, because while Easy Photography Portfolio might serve that purpose for some, it’s not what the plugin is made for.
With all that said, there is a way to increase the limit using a snippet of code, but using that filter and increasing the limit to 500 is definitely going to cause technical performance problems with your portfolio archive page.