Emulator

Moving from build 4682 to the last 4699, Super Paper Mario becomes the hell
slow, despite the fact i'm using the same settings between the two builds.
It lost half the framerate, dropping from an average of 45fps (build 4682)
to an average of 25fps (build 4699).
Haven't tried the intermediate builds between these two, just fired up 4699
and experimented this bad behaviour. Currently reverted to 4682.

I'm using these settings on both of these builds:

>>>Under Config->General:

[Basic Settings]
Enable Dual Core (speedup)
Enable Idle Skipping (speedup)
Unlimited Jit Cache
Framelimit: off

[Advanced Settings]
HLE the IPL (recommended)
JIT Recompiler (recommended)
Optimize Quantizers (speedup)
DSP on thread (recommended)

For Graphics, I'm using the Direct3D9 plugin, with the following settings
(beyond what's enabled by default):

>>>Under Direct3D Tab:

Enable CPU->EFB access

>>>Under Advanced:
EFB Copy Enable -> To Texture

Regarding EFB Copy, on 4682 doesn't matters if this setting is on "To
Texture" or "To RAM", doesn't change the framerate too much in Super Paper
Mario (just 1~2fps), but it improves a lot the performances of other 3D
games, like Super Mario Galaxy or Smash Bros Brawl.

On 4699, if I switch it from "To Texture" to "To RAM", it just gives me
about 3~5fps more in Super Paper Mario, but absolutely below compared to
the 4682 build.

Concluding, the other games I'm playing don't seem to be affected by this
issue (Super Mario Galaxy and Smash Bros Brawl), it seems it happens only
with 2D games, but I can't confirm, since I have only Super Paper Mario.

The machine I'm currently using for testing the emulator has the following
specs:
CPU: Core2Quad Q8400 @ 2.66Ghz
RAM: 2Gb
VGA: Radeon HD 4850 (512MB)
OS: Windows 7 Professional x64

Both the builds are compiled for x64