Bad performance - any fixes?

[Kalirion]

I've tried disabling all the various video options, played around with the framerate, none of it seems to help. Trollmire is pretty fast, but soon enough in some of the later dungeons even holding down the "wait" key is taking a long time (maybe 3 turns a second). Autoexplore in the maze was extremely frustrating.

I have a pretty weak laptop by gaming standards, but it should be more than enough for this game, right? (1.3GHz Core 2 Duo, 4500mhd, 4GB RAM, Win 7x64)

[Dervic]

Did you try lowering number of particle effects?
Particle effects in this game can really lag slower computers.

[Kalirion]

Thanks, but didn't work.

It's weird, I have no idea why this happens. The next playthrough, the maze was pretty fast, but other levels not so much. Later, infinite dungeon was bog slow.

[Hunter]

Were there a lot of monsters? Those can slow down performance (the difference between auto-exploring a new level and auto-exploring the same level after you've cleared it can be quite noticeable.)

[achoice]

Im new for Tome4. I've not experienced any performance issues "in game" - only when changing levels.
It feels like up to 30 sec. or so.
I've got a modern PC, win7, SSD drive etc. Heck - even Diablo3 starts & saves quicker!
Tome takes ~20%CPU of the four cores at level change. (indicates single thread full usage)