No no no. this is not true. higher sim speed is faster. lower sim speed is slower only if you hit -1 or less.
If you see a sim speed of +7 it mean you could speed up the game 7x (note that im not talking about FPS here but game execution)
IT was like that in supcom and it is still like that for demigod.
For proof, start a fresh game and look at the sim speed. On my 4 cores, im at +10 on start. and when the game evolve a bit, sim speed go down to around 5.
I dont notice any slowdown(not FPS, gamplay speed) because it is still in the positive number.
If you could please correct your statement Frogboy or give me an explication if I missed something...
Also stating that having a simspeed of 1 is better than 2 is sooo wrong. Your too close to make the game slow for everyone in multiplayer because your close to the -1.