Project Dashboard - Very Slow loading

Hi is anyone else experiencing very slow load times with their dashboard?

We’ve made a dashboard that shows dates from numerous projects to plan who’s working on what when etc.

It previously worked fine, but now when planning it takes at least 20-30 seconds to load as you move week to week on there, it also re-loads if you go back to what you’d previously loaded?

Anyone else experiencing this? Or know some fixes?

Thanks in advance