I like the middle of a series best.
The first part mean they are trying to impress each other, and may take their clothes off.
The last part, which is what has started now, is when a lot of them are fed up with each other so hence more shouting, plus most or everyone knows who will vote for who.
In the middle part, there is more a case of, who is forming groups with who, who may do a showmance[in this one it seems Bianca and Jamie, I can do without the showmances myself], there may be some trying to "play the game" [and often failing as they guess wrong, in this one Speidi] and some fun.
Personally I prefer the ordinary Big Brother.
I still tend not to watch the first week or two, and get fed up and miss some of the end episodes.
There are some episodes that are fun, but they can get few and far between.