Ver 4.5 causes both my tablets to run 100%
First, let me say that Lucid is my "go to" browser. I like its light weight.
Now, I've got two tablets, a Samsung Tab 2 with a tweaked stock ROM and an AGNi kernel. The other is a Nook HD+ with an f2fs version of LiquidSmooth ROM with a custom kernel. (Both with dual core processors.) I had been running Lucid v 4.4 on both without problems. Then I upgraded to v4.5 (the Lollipop version) just because.
Both tablets got very hot when running v4.5, and I found that they got hot because their SoC's were running both cores at 100%. (Both tablets use the hotplug governor. )
I dropped back to v4.4 and both tablets run cool again.