I prefer using safari + adguard for ios => good combo without slowdown
safari is still the fastest and the most compatible, most convienient browser for iOS. I use other browsers sometimes but may have to comeback to safari for sending a pdf to my pdf reader, for example
I also use puffin free + alternate-DNS to block ads within puffin (puffin pro doesn't have ads within the browser). Very fast, sometimes faster or slower than safari, has a data compression, a built-in flash player. With alternate DNS, I don't see any ads in puffin free. use it like the pro version => this may be a choice for you. The speed depends on your region because they process your data over their server => security risk
I tried dolphin and chrome but I didn't like both. There were no convincing features
