I havn't played alot of games using Wine, I tried it on a few though and I noticed an increase on performance from Windows. But i will say at first I thought Linux was slower than Windows because I was using Ubuntu but once I switched to a lower resourced distro things got better.
I use 3 different browsers on Linux for different kinds of websites, some of these you guys might want to check out. Since I do specific types of sites on specific browsers the performance is greatly increased. Not saying you have to do it exactly like me, but one or mor eof these browser's might catch your attention.
Links 2 is my browser for reading articles, it is a command line browser that displays images by defult while other command line sites do not at all, (some do display images but not by defult), and it's great for going to sketchy websites if you just want to read articles. No javascript support (no pop ups and a little more secure). What makes it great is the instant load times that it has. I usually use it just for articles but since it does display images by defult you guys might find some other use of it. The 2nk browser I use is Netsurf. Usually when I use forum sites on Linux I use the NetSurf browser. Net Surf is very much like a mainstream browser but it doesn't support video content, it is great for forum sites and sites like Deviant Art. The perfect browser for just forum sites. Lastly Midori is my video streaming browser. So if I come across a video, I locate the link for it and open it in Midori just to play the video.