Chrome+Opera

[Nipp]

Started working with Windows and discovered that I cannot open Opera and Chrome at the same time. They both start working slowly or even stop loading pages.
Does it mean they are not compatible? Have you ever had such a problem and did you get any solutions?

[Salmon Trout]

Possibly both Chrome and Opera are stressing some resource that is not stable under load such as buggy graphics drivers, faulty memory, HDD problems, CPU overheating. What happens if you subsitute Firefox for each in turn?

[Nipp]

Tried. Firefox makes loading even slower  in both cases

[soybean]

And, you're using an Apple machine, right?  Your profile shows "Mac OS".