The Orchard. Rustic Acres

Apologies for any errors I'm visually impaired 

I've just opened the Orchard, I'm working my way through the 10 days.

However the screen is really slow in this area. If I switch to another area within the game its fine. But as soon as I go inside the house, the whole game lags. Thats the only way to describe it.

Sims are walking slow, screen is glitchy.

I've cleared cache.

Any ideas?

Thanks