Plutonium

I recently installed plutonium in order to play T6 with some friends, but my pc is taking a really long time to connect to the parties and, especially in Team Deathmatch, my game always crash after some time.. That happen even if I "host" the game. Is my computer too old to play ? I have a Toshiba Satellite Pro set up as follow :

• Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz 2.40 GHz
• 4,00 Go RAM
• 64-bit operating system, x64 processor

I play connected to the 2.4GHz wifi as my computer cannot connect to the 5GHz.

Thank you in advance for any help !

Worked like a charme, thank you very much!

Xerxes thank you for the answer! I will delete them. How do I repair DirectX? Is it by rerunning the .exe contained in the DirectX folder I extracted from plutonium_redist_uptaded.zip?
I forgot to precise that I am on Windows 10 64 bits.

Hello,
So I've been trying to play T6 for some days now, but I have met only difficulties and no solutions found here could fix them, so I try with this new topic.
After downloading the pluto_t6_full_game folder, launching the .exe and connecting to Plutonium, when I press the Play button, after selecting the pluto_t6_full_game folder, the launcher crash with the error "It appears you have selected an invalid game folder, the folder you selected in the launcher does not contain the gamefiles required to play the game. Unable to oad '#4' from module 'XINPUT1_3.dll' ..."
After multiple checking, I've really selected the pluto_t6_full_game folder.
So I downloaded xinput1_3.dll and puted it in the system32 folder and in the SysWOW64 folder as well, and then rebooted. Nothing changed. I then downloaded the plutonium_redist_uptaded.zip and installed all for programes that it containe as well as DirectX in its folder. Nothing changed. I've tried deleting the pluto_t6_full_game folder and then redowloading it twice. Still no change.
Here is a screen of the error bugging me. Thank you in advance for any help !