Reflections: Really That Brutal?

[Synthesis]

This is more a general question than a specific technical request, hopefully that's allowed: since 1.1, I've noticed that any reflection mod that actually works seems to beat my framerate to death, at least when combined with KSPRC.

In 1.0.5, reflections on parts--even widespread parts, like the reflections that came with Texture Replacers--barely caused a hiccup in framerates. Now, I'll go from having a consistent 60 FPS to jumbling around 15 or so, with lots of hangups.

Has something changed with how Unity handles part reflections? It's not a dealbreaker of course, but it does seem sad that even just a simple Stayputnik reflection could slow the game down more than a hundred-part-design. And it doesn't seem like a hardware issue--I've got a GTX 970 and a i5-4670K (3.4 ghz). 

Anyone have a similar experience?