Try *not* running Pero and Flower Knight at the same time, those two slow down eachother a lot I noticed. So when I'm in Pero and want to play Flower Knight, I press the "games" button at the top, which opens a new tab, then close Pero, and then click the link to Flower Knight Girl. And same thing the other way round. I always close the tab for the previous game before entering the next. It reduced lag a lot, and also reduced the Flash crashes I used to have.

i dont play the 2 games at the same time

at idol wars and heroharem ther is the problem not....

OK so i wasnt the only one having that issue. But on a side note, my laptop runs the game fine while my desktop has the click issues.

I can play 4 games at the same time except if aigis is on It's either close aigis or close the other games

Flash issues. To save some memory with that scheme. try adjusting this in advanced menu from mozilla (type about:config in address bar)

layers.tile-width 128
layers.tile-height 192

(or even 128 as value)

Then restart browser. Default values for both are 256. Also applies to Mozilla for Android (saves a lot of issues with Dragon Providence).

If you have enough CPU, you can disable hardware acceleration from browser preferences.