Explosion slow the game

[yomez]

Hi,
I have noticed each time a ship or a base explode the game freeze for 0.5 sec and go on.
This is not a big freeze but when i'm going in war there is a lot explosions in the same time and freeze as well.
More the galaxy is older more the game is slow.
I never see the game use more than 20 % of my computer performance cpu and memory
I've tried to manage the framerate it's doesn't seem to change anything
There is a way using more memory for the game be fuild ?

Other thing, each time i transfert a character to an other location all my fleet are messed up. They aren't in the same order

Distant world legends 1.7.0.16
Windows 2.6.1.7601 (Service Pack 1)
CPU :Intel® Core™ i7-2600K CPU @ 3.40GHz
RAM :15,98 Go
video card :NVIDIA GeForce GTX 460 x2 in SLI
Memory video card :3,96 Go
PILOT :nvd3dum.dll
hard drive :783,07 Go
Free space on hard drive :264,38 Go (34 %)