I also would possibly welcome an accelerator "device" to indicate what's really happening... after reading up some of the answers above i can't help notice how INCREDIBLY better systems most everyone here seems to have & enjoy!
I mean, get serious. I know my pseudo-PC is VERY slow and with the following;
--------------------------------------
...
DirectX Version: DirectX 9.0c (4.09.0000.0904)
Machine Name: ZYXPSILON
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 2 (2600.xpsp_sp2_gdr.070227-2254)
Languages: French (Regional Setting: French)
System Manufacturer: MICRO-STAR INTERNATIONAL CO., LTD
System Model: MS-6528
BIOS: Award Modular BIOS v6.00PG
Processor: ****
Intel(R) Pentium(R) 4 CPU 1500MHzPhysical Memory: ****
512MB RAMPage File: 336MB used, 1424MB available
Windows Dir: C:\WINDOWS
Display Info
Display device 1:
Device Name: \\.\DISPLAY1
Card Name: ****
NVIDIA GeForce 6200 Manufacturer: NVIDIA
Chip Type: GeForce 6200
DAC Type: Integrated RAMDAC
Key Device: Enum\PCI\VEN_10DE&DEV_0221&SUBSYS_02F1196E&REV_A1
Display Memory: 256.0 MB
Current Display Mode: 1280 x 1024 (32 bit) (60Hz)
Monitor Name: Samsung SyncMaster 750ST(T)
Monitor Max Resolution: 1280,1024
Driver Name: nv4_disp.dll
Driver Version: 6.14.0010.9371
Driver Date: 10/22/2006 13:22:00
DirectX Acceleration Enabled: Yes
---
Debug Message: *********END dxdiag info.*********
Debug Message: Entering WinMain
Debug Message: ******* Starting Game Shell *******
Debug Message: Going Fullscreen
Debug Message: Preparing to change display settings.
Debug Message: Using hardware vertex processing
Debug Message: Using multilsample setting: D3DMULTISAMPLE_NONMASKABLE
Debug Message: Attempting to create D3DDevice at resolution 1280 x 1024, Windowed: 0, Multisample: 1
Debug Message: Game Resolution: 1280 x 1024
Debug Message: Running fullscreen.
Debug Message: ***
HAL (hw vp): NVIDIA GeForce 6200 (!!Lights up, textures!!)
Debug Message: D3DPRESENT_INTERVAL_DEFAULT
Debug Message: Refresh rate: 60
Debug Message: Bit Depth: 32 bit.
Debug Message: *********Checking D3DDevice Caps***********************
Debug Message: A full-color cursor is supported in hardware at high resolution modes.
Debug Message: RGB in format 6:6:6, Masks reported as ff0000:ff00:ff
Debug Message: Now Fullscreen
Debug Message: Shell initialization complete
(Yup, ticking and running slooooowly!)Debug Message: GalCiv2 is activated.
Debug Message: ***** Initializing Game *****
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It
IS to be expected. And, i'm dumb (or smart, btw) enough to still enjoy whatever GC2_DA can throw at me. Terrible slow-downs is one thing, TBS tactical gameplay another. Explore space, single-player. A bit less critical than Crysis and it's behemoth demands. Or even, Vista OS quality fancying.
There is, nevertheless, a bunch of good advice to optimize a few things written in previous posts; which i may even try to
enhance the experience. TotA comin' right up is another good reason why i should take great care of some system settings until i finally get to buy a more recent & performing machine.
Although, Phoig's special world-maker-builder ship reminded me about a tricky little design i tackled up awhile ago.
The ever soooo gimmicky late-game spawning anomalies seeker i patched up just for kicks below....

Double Hyperwarps engines, plenty of defensive shieldings, a few gizmos to make it look X-Commy daring and fast. And as a bonus, THE textures. To me, it mattered much back then.
It's quite okay. I really don't mind the painstakingly weird wait(s).
After all, fun is what you make of it.