Casino Games Optimization?

Did anyone notice how games are optimized in some casinos , and in some u can't even load it for a while?

I would transcribed this to amount of users at the time, but i see on some casino empty slots (in game room) so it's not capacity 

I had a real problem with some casinos with my laptop (which is ok,i5 gen,8gb ram) where my temp was 70+ in one casino when i play slot...

on other casinos same game 40-50 temp...

On Casino Guru also never had any issue

Why is this?

Is it that hard to optimize the website ? or is it something else? 

I had problems with Betsoft the weekend. (In two casinos of the same owner)

I don't know why.

They just told me to "try later"

no im not talking about providers, just for casinos in general... for example try to enter (without account  )

 meridianbet.rs and try to free play some games... they are so heavy to load...

also in some casinos i notice many times 'waiting to server to respond' and just spinning ..

So annoying ,especially when u loosing :D

And some casinos are so optimized it's enjoy to play.... 

Yes! I know that particular casino and you're right.

Exaggeratedly slow.