New to me, 09 Maxima Gremlins

[sinious]

This is all for a highish mile car, for highway driving, and safety with my Son.

Got a total loss on an 2011 alty coupe and bought a high mile 09 Maxima SV (114k, no options). Looking for longevity tips.

Gremlim 1: front suspension has a constantly reproducable creak and metallic tick sound. Slow or fast, rubber+water and metallic click. Usual replace struts, (new tower mounts) or stabilizer busch?

Gremlin 2: body roll on the highway is scary. Hard turns at speed seem to elastic, dangerously curling the car on corners so the unibody acts like a spring, causing me to steer the car out of the effect and slowing down. sway bars? Cv? F/R stabilizer bars?

Gremlin 3: general maintenance. Dumped 5 quarts of cvt, black as dirt. Put in $100 (5qt, really 4.25qt) of Nissan ns2. Feels smoother. Order 15qt ns2 and do a full or not? After a long drive it is oddly sluggish while hot. Much more on hot days. Engine cvt or both? Havent heard radiators ticking since 90s mustangs but they do. Any way to know if I even got the cvt cooler?

Gremlin 4: put full new continental contact extreme dws06 with new premium rotor/brake pad top compound" but TPMS is not happy at 33psi. Higher psi shuts off tpms. I feel this is a cheap +mpg and tpms hack. I'd like it correct. 36psi, no tpms. Door jams say 33psi. Tpms on at all times.

Gremlin 5: heard the stock sv on youtube, very loud and impressive. Mine sounds quiet and poised. Engine weak? Recommended upgrades?

Put continental ContactExtreme DWS06 on there which smoothed it. I am really looking for torque when needed but #1, a decent car with 80-90mph standard highway comfort. I drive 360mi a weekend picking up and dropping off my lil 9y/o boy 52 weeks a year. Please help me sort this car! My biggest concern is the driven to dead near 115k cvt.

I have things like laser-Iridium (?) NGK plugs but taking the car upper intake off to do them seems crazy. Is it? Else?

Thanks for any tips! I want to restore anything I can or decide this car is just unfit.

[sinious]

Too much for a first post? I read quite a bit before posting and used search. My inline answers are a compilation of condensed "possible" answers on each area.

Just looking for advice on any of the items.

The body roll and creak/metal tick when going into low bumps in the front is driving me nuts. Would someone please recommend a replacement brand of struts and springs? If that doesnt fix it, recommendation of brand on front sway bars? If none of that fixes it I'll check under the wiper cowl.

Thanks for any thoughts

Edit:

Just looking to drive normal. I had another 09 Max SV with the sport package. Bit more expensive and even higher mileage. I opted for non-sport intentionally, even though I liked the seats and rims. I could go OEM on replacement or just like Monroe for value, but I woulx prefer at minimum OEM feel or just a touch better. I don't need to lower it a ton and toss 20"s on it.