Slow loading with FluentLight-5 / FluentDark-5 themes

Hello,

I’m seeing a performance problem with two of the Fluent themes. When I switch my Wisej app to FluentLight-5 or FluentDark-5, the UI loads and reacts noticeably slower than with any of the other themes — the difference is very clear and reproducible. All the other themes (Material, Bootstrap, Clear, Graphite, etc.) load and respond normally.

I exported/downloaded these themes from the Theme Builder yesterday.

I’ve attached a minimal Wisej test project (WisejThemeTest.zip) that reproduces it: it’s a simple page with a set of standard controls and a dropdown to switch between all the themes. Just build, run, and switch to FluentLight-5 or FluentDark-5 to see the slowdown compared to the others.

Is this a known issue with these themes, and is there anything I can do to speed up their loading?

Thanks