new patch lag fest act 3 and crashing now in jungle ruins ...

Before latest patch , i never crashed at all and never experience those crazy frame drop in the marsh act 3. At the second those mosquitoes show up my frames drop crazyyyy. 300fps to 1 fps in a split second. And jungle ruins crash for me i cant even load on my character there , game keep on crashing on the loading ... GGG how did you manage that ?! please pretty please can you fix it ?