That sounds like the proverbial "iece of string" question in that it depends on many factors.
Some of these would include the speed of your computer, how full your hard drive is, the number of other programs you're running at the time, your Internet connection, your anti-virus program and whether your computer is infected.
Of course, some games are pretty big, so if RAM is in short supply, that too could impact. I've noticed that a number of games offer modes with lower screen resolution, maybe you could try this option to see if it helps.
Other reasons might be because of Your Browser Flash Player You might have too many things open...so your RAM can't handle it
Ways to Solve Get Different Browser Update Flash Player Close Things Upgrade RAM Upgrade Hard Drive Delete things you dont need Scan computer Perhaps even the game has flaws (low chance) Get better laptop/pc
These are some basics, there are more. (Sorry for long post)
