I downgraded to 1.0.4.0 but I'm not able to use the latest version of LCPDFR. Which version should I use?

I believe LCPD:FR 0.91 works (might be buggy) As for 0.95 RC2-RC I believe you can with much trial and error (it has been done but good luck if you wanna do it)

 

Really LCPD:FR is only made for GTA IV 1.0.7.0 so if you want to best, stay on patch 7.

a lot of really good looking enbs are for 1040 and it doesn't lag as much as 1070 sometimes I wonder if the latest patch was really a good idea since I hear a lot of complaints on a lot of different forums about how laggy it is compared to 1040..i thought about going down to 1040 myself

LCPDFR 0.95has dependencies in 1.0.7.0, which is the reason why only that version is supported. There'll never be a 1.0.4.0 version. The devs have explained this multiple times.

 

Also, I do not share your experiences, about how 1.0.4.0 is more stable. Actually, I've found the opposite.

With the regular game and with 1.0.4.0 patch i lag a lot. 1.0.7.0 is really smooth for me 

It's a shame really.  There are so many ENB series out there with full support for 1.0.4.0.  However, LCPD:FR supports only 1.0.7.0 and getting mods to work in conjunction with different patch version might not be impossible.. but surely will be a pain in the ass.  I've tried countless ENB mods (most of them all meant for 1.0.4.0) with LCPD:FR only to crash and fail each and every time.  I did figure out a way around it though.  The answer is simple:

Either play LCPDFR without 1.0.4.0 ENB series...or....

Don't play LCPD:FR.

 

Thats the sad reality. =/