I am using the current CVS version (not 0.61), so there may be difference and the BLOOD version: One Unit: Whole Blood 1.21 downloaded from Underdogs.
As far as slowness is concerned:
BLOOD seems to behave rather strangely in relation to emulated number of cycles in DOSBOX. For example when using 4000 cycles the game seemingly froze during start (menu with dripping blood, but nothing changed - blood was not dripping - perhaps you experince similar effect). The game started to react when I increased number of cycles significantly (I do not know where the border is)
So e.g. set number of cycles to 18000, start the game and then lower number of cycles so that sound does not skip.
The above mentioned concerns "normal" core, "dynamic" runs quicker but it crashes occasionaly.
Other things to watch:
- choose the lowest available resolution
- use the least demanding sound card (I think it would be GUS, but it did not work for me, so I used simple SoundBlaster, 4 voices)
- set music card to General Midi
- keep to the recommendation for running resource demanding games (see the Dosbox Guides forum): fullscreen, 16 bit desktop etc.
Judging from the way it runs on my 1 Ghz Atlon I think it should be playable on 2.8 Ghz.
Mirek