My computer is a fairly decent one, 6GB RAM, intel i7 2nd gen and so on. My internet is fast as well, 100/20 mb down/up.
Here's my gpu settings from opera (opera://gpu) :
Graphics Feature Status
Canvas: Hardware accelerated
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Disabled
Rasterization: Software only, hardware acceleration unavailable
Threaded Rasterization: Enabled
Video Decode: Software only, hardware acceleration unavailable
Video Encode: Hardware accelerated
WebGL: Hardware accelerated
Driver Bug Workarounds
clear_uniforms_before_first_program_use
exit_on_context_lost
scalarize_vec_and_mat_constructor_args
texsubimage2d_faster_than_teximage2d
Problems Detected
Accelerated video decode interferes with GPU sandbox on certain AMD drivers: 298968
Disabled Features: accelerated_video_decode
GPU rasterization is blacklisted on non-Android: 362779
Disabled Features: gpu_rasterization
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
TexSubImage2D() is faster for full uploads on ANGLE
Applied Workarounds: texsubimage2d_faster_than_teximage2d
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Always rewrite vec/mat constructors to be consistent: 398694
Applied Workarounds: scalarize_vec_and_mat_constructor_args
Raster is using a single thread.
Disabled Features: multiple_raster_threads